WO2001017214A1 - Systeme et procede de reprogrammation par radio d'un dispositif avance de messagerie sans fil - Google Patents

Systeme et procede de reprogrammation par radio d'un dispositif avance de messagerie sans fil Download PDF

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Publication number
WO2001017214A1
WO2001017214A1 PCT/US2000/024022 US0024022W WO0117214A1 WO 2001017214 A1 WO2001017214 A1 WO 2001017214A1 US 0024022 W US0024022 W US 0024022W WO 0117214 A1 WO0117214 A1 WO 0117214A1
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WO
WIPO (PCT)
Prior art keywords
update
program
controller
message
set forth
Prior art date
Application number
PCT/US2000/024022
Other languages
English (en)
Inventor
Steven Larghi
Original Assignee
Weblink Wireless, Inc.
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 Weblink Wireless, Inc. filed Critical Weblink Wireless, Inc.
Priority to AU69489/00A priority Critical patent/AU6948900A/en
Publication of WO2001017214A1 publication Critical patent/WO2001017214A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/533—Voice mail systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/533—Voice mail systems
    • H04M3/53366—Message disposing or creating aspects
    • H04M3/53375—Message broadcasting

Definitions

  • the present invention is directed, in general, to wireless communication systems and methods of operating the same and, in particular, to systems and methods for reprogramming wireless messaging devices over the air.
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • CDMA code division multiple access
  • multiple access means that multiple subscribers (or users) are able to communicate simultaneously with each of these systems .
  • the infrastructure of a messaging system is somewhat different than cellular telephone systems.
  • a NPCS messaging system all of the base station transmitters throughout a wide coverage area are synchronized and simultaneously broadcast (i.e., simulcast) a message in a forward-channel to a subscriber's wireless communication unit (e.g., portable message pagers, fixed messaging or telemetry devices, etc.).
  • This simulcast increases the likelihood that the transmitted message will reach the device even through obstacles, such as buildings, trees, overpasses, and the like.
  • the subscriber communication units are capable transmitting messages in a reverse-channel to numerous receivers associated with the base stations.
  • the messaging system does not assign the subscriber to a particular cell and does not transmit to the subscriber only in one cell, as in the case of a cellular telephone system.
  • Telemetry systems are communication systems that transmit "status" information from a remote process, function, or device (collectively, “telemetry application”) to a central control facility. Telemetry systems may be used in lieu of maintenance workers to remotely monitor a given telemetry application, such as a utility meter, security system, vehicle locator, environmental monitor, vending machine, medical equipment, oil drilling equipment, and the like. It is highly desirable to be able to update the programs in a subscriber communication unit by means of an over-the-air (“OTA”) update procedure. This allows software errors to be fixed after the subscriber communication unit is distributed to end users and also allows the capabilities of the installed software to be upgraded or even completely changed.
  • OTA over-the-air
  • a "blank" subscriber communication unit may be distributed to an end user with only a basic operating system for controlling the radio functions of the subscriber communication unit installed in the unit, and no end-user application installed. Thereafter, the end user may install customized applications in the subscriber communication unit via an OTA update.
  • a vending machine company may purchase generic subscriber communication units and install them in vending machines. Vending machine control software may then be installed in each generic subscriber communication unit by means of an OTA update routine. Subsequently, software corrections and upgrades may be installed by means of an OTA routine.
  • ROM read only memory
  • An erasable ROM is used to store the BIOS program and the end-user application for which the subscriber communication unit is used.
  • the smallness of the erasable ROM also known as a "flash ROM" may make it impossible to download a new application and/or BIOS program "over the air” because the BIOS program and the existing application program (s) consume too much space in the ROM.
  • an update controller for performing an over-the-air (OTA) update of a first program stored in an erasable read-only memory (ROM) in the wireless messaging device.
  • OTA over-the-air
  • the update controller comprises: 1) a transceiver capable of receiving wireless messages from a base station in a forward channel and transmitting wireless messages to the base station in a reverse channel; and 2) a message controller coupled to the transceiver capable of detecting an OTA update message transmitted by the base station, wherein the message controller, in response to detection of the OTA update message, transfers an update control program stored in the erasable ROM to a random access memory (RAM) coupled to the message controller and executes the update control program from the RAM.
  • RAM random access memory
  • the message controller under control of the update control program, receives from the transceiver a second program suitable for replacing the first program and stores at least a portion of the second program in the RAM.
  • the message controller under control of the update control program, transfers at least a portion of the second program from the RAM to the erasable ROM. In still another embodiment of the present invention, the message controller, in transferring the at least a portion of the second program to the erasable ROM, overwrites at least a portion of the first program. In still another embodiment of the present invention, the update controller transmits an update request message to the base station, wherein transmission of the update request message causes the OTA update message to be transmitted to the update controller by the base station.
  • the update controller periodically transmits the update request message according to a time period modifiable by a user of the wireless messaging device. In a still further embodiment of the present invention, the update controller transmits the update request message in response to a triggering event .
  • the triggering event is at least one of: 1) a manual input received from a user of the wireless messaging device; 2) an input received from monitored equipment coupled to the wireless messaging device; and 3) an error occurring during execution of the first program.
  • FIGURE 1 illustrates a representative portion of an exemplary messaging network in accordance with one embodiment of the present invention
  • FIGURE 2 illustrates an exemplary one of the subscriber communication units for use in the network in FIGURE 1 in accordance with one embodiment of the present invention
  • FIGURE 3 illustrates in greater detail a portion of the control facility in FIGURE 1 in accordance with one embodiment of the present invention.
  • FIGURE 4 is a flow diagram illustrating an over-the- air software update procedure in accordance with one embodiment of the present invention.
  • FIGURES 1 through 4 discussed below, and the various embodiments used to describe the principles of the present invention in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the invention. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged wireless messaging network.
  • Network 100 provides two-way data messages to subscribers (or users) of network 100.
  • Network 100 is represented by three exemplary fixed land sites, called base stations, which communicate with a plurality of subscriber communication units 121-128 (e.g., message pagers, telemetry devices, PCS devices, personal data assistants, or other processing systems that include wireless communication capability, etc.) within network 100.
  • subscriber communication units 121-128 e.g., message pagers, telemetry devices, PCS devices, personal data assistants, or other processing systems that include wireless communication capability, etc.
  • Base stations 111, 112 and 113 each labeled "BS" in FIGURE 1, have coverage areas 101, 102, and 103, respectively, that are determined by the power of the transmitters in base stations 111, 112, and 113.
  • coverage areas 101, 102, and 103 are shown as circles. In real world environments, however, each of coverage areas 101, 102, and 103 may differ significantly from an idealized circular form.
  • Subscriber communication units 121 and 122 are located within coverage area 101 and may engage in two- way messaging with base station 111.
  • Subscriber communication units 123 and 124 are located in coverage area 102 and may engage in two-way messaging with base station 112.
  • Subscriber communication units 126, 127 and 128 are located in coverage area 103 and may engage in two-way messaging with base station 113.
  • Subscriber communication unit 125 is located in coverage areas 102 and 103 and may engage in two-way messaging with base stations 112 and 113.
  • base stations 111, 112, and 113 transmit signals in a forward-channel , such as from 939-940 MHZ, for example.
  • Base stations 111, 112, and 113 receive signals in a reverse-channel at, for example, 901-902 MHZ.
  • Each base station is effectively a transceiver that contains a transmitter and a receiver for carrying out two- way communications.
  • Each subscriber communication unit receives forward-channel messages directed to it at a selected frequency within the forward-channel .
  • Each communication also transmits reverse-channel messages at a selected frequency within the reverse-channel .
  • Messaging network 100 may be, for example, a two-way wireless messaging system compatible with the MOTOROLA ® ReFLEXTM transport protocol .
  • the ReFLEXTM protocol may be used to send a message to a subscriber communication unit.
  • the subscriber communication unit may then transmit in the reverse-channel an automatic acknowledgment message that does not require subscriber action.
  • the ReFLEXTM protocol may be used in an enhanced messaging mode to send a more complex message to the subscriber communication unit.
  • the subscriber communication unit may then transmit in the reverse-channel an automatic acknowledgment message that does not require subscriber action.
  • the subscriber may transmit a "canned" message stored in the subscriber communication unit, such as "Will Call You Later", or a unique message composed by the subscriber using a keypad on the subscriber communication unit.
  • Base station 111 transmits messages to subscriber communication units in coverage area 101.
  • Base station 112 transmits messages to subscriber communication units in coverage area 102.
  • Base station 113 transmits messages to subscriber communication units in coverage area 103.
  • Base stations 111, 112, and 113 may be associated with one another and to a control facility 10 by a wired backbone, such as a proprietary fiber-optic network.
  • base stations 111, 112, and 113 may be associated with one another and to control facility 10 by a satellite communications link, such as through a very small aperture terminal ( "VSAT" ) .
  • VSAT very small aperture terminal
  • messages may be received into control facility 10 from a variety of sources. Some messages may be received from a public telephone system in the form of simple call -back numbers entered by a caller on a DTMF keypad. Other messages may be received by control facility 10 from an Internet connection. Additionally, and most importantly in the context of the present invention, messages may be received from subscriber communication units, such as telemetry devices dispersed over a wide area.
  • FIGURE 2 there is illustrated a block diagram of an exemplary one of subscriber communication units 121-128 for use in network 100.
  • Exemplary subscriber communication unit (SCU) 124 may comprise a two-way paging device used by a subscriber or may be a part of a telemetry device that is used to transmit to network 100 measured data, status messages, alarm messages, and the like from a monitored piece of equipment in which SCU 124 is incorporated.
  • the monitored piece of equipment may comprise a vending machine, medical equipment, a home alarm system, remote oil field equipment, remote power generation equipment, and the like.
  • Exemplary SCU 124 comprises antenna 205, transceiver 210, message controller 215, an electronically erasable programmable read only memory (EEPROM) 220 (referred to hereafter as “flash ROM 220”), and random access memory (RAM) 230.
  • SCU 124 may also comprise monitored equipment 240 that generates telemetry data that is transmitted to control facility 10 and then relayed on to a final destination.
  • EEPROM electronically erasable programmable read only memory
  • RAM random access memory
  • Antenna 205 transmits and receives RF signals between base station 112 and SCU 124, including standard NPCS communication messages and messages associated with the OTA reprogramming capability of the present invention.
  • Transceiver 210 down-converts the received RF signals into binary messages for transfer to message controller 215 and up-converts to RF signals the binary messages received from message controller 215.
  • Message controller 215 comprises standard means for interfacing with transceiver 210, flash ROM 220, RAM 230, and monitored equipment 240. Message controller 215 executes BIOS program 222 and application program 226 stored in flash ROM 220 and controls the operation of SCU 124 under the direction of these programs. Message controller 215 responds to stored OTA reprogramming messages and data to accomplish partial or complete replacement of the programs in flash ROM 220.
  • message controller 215 coordinates communications between SCU 124, any directly interfacing devices, and network 100. Periodically, message controller 215 may detect the initiation of an OTA reprogramming event. Once message controller 215 determines that an OTA reprogramming event has been initiated, message controller 215 copies update program 224 from flash ROM 220 to update program 234 space in RAM 230. At that time, message controller 215 begins to execute the update program from update program 234. When message controller 215 determines that OTA reprogramming is completed, it returns to the normal operating mode under the direction of BIOS program 222 and/or application program 226 in flash ROM 220.
  • BIOS program 222 controls the basic operations of SCU 124, including the operation of transceiver 210.
  • Application program 226 comprises the basic end-user application performed by subscriber communication unit 124.
  • application program 226 is a telemetry program if SCU 124 is used in a telemetry application.
  • application program 226 may be a text messaging program if SCU 124 is, for example, a two-way paging device.
  • RAM 230 is normally used to store the wireless messages transmitted and received by SCU 124. However, in accordance with the principles of the present invention, all or portions of RAM 230 are reallocated as space for downloaded target program 232 and update program 234 during an over-the-air (OTA) reprogramming operation (event) for SCU 124.
  • OTA over-the-air
  • the memory space for update program 234 is further divided into sub-spaces for radio control routine 236 and copy control routine 238.
  • message controller 215 determines that a reprogramming event has been initiated, it causes the content of update program 224 to be copied into RAM 230 space for update program 234.
  • Update program 224 in flash ROM 220 may contain all of radio control routine 236 and copy control routine 238. Alternatively, message controller 215 may copy a portion or all of radio control routine 236 from a part of BIOS program 222.
  • Radio control routine 236 represents the portion of update program 234 which is reserved for software associated with controlling the operation of transceiver 210 during reprogramming events. Radio control routine 236 maintains communication with network 100 through base station 112, including time intervals when SCU 124 is being reprogrammed through OTA update of the present invention.
  • Copy control routine 238 represents the portion of update program 234 that stores downloaded target program 232 in RAM 234 during the OTA update and then transfers it to flash ROM 220 when the OTA update is complete.
  • Downloaded target program 232 is the replacement program that is received over-the-air from base station 112 and that replaces part of, or all of, the programs initially in flash ROM 220.
  • An OTA reprogramming event may be initiated in several ways.
  • SCU 124 may transmit an update request message (reprogramming event) through base station 112 according to a periodic occurrence, such as reception of a signal from an internal or external clock timer, or intermittently according to a user command or the detection of an error, such as major power interruption or software conflict, and the like.
  • control facility 10 comprises means for detecting the presence of the update request message for a specific program update from SCU 124 and responding with a program update command.
  • SCU 124 recognizes the program update command as an indication that a reprogramming event has been initialized.
  • control facility 10 comprises means for detecting an update of a specific program in SCU 124 without regard to receiving an update request from SCU 124.
  • These means are similar to those discussed for SCU 124, such as the expiration of a clock period, a triggering signal, a system error, user command, and the like.
  • user commands these may be received through other SCUs, the PSTN, or other means and may include the capability of initiating a reprogramming event for all or a portion of the SCUs associated with network 100. For instance, a particular user with a group of remote telemetry devices may transmit an update command for an application program associated with all of the telemetry devices.
  • Control facility 10 determines that an update command has been received, identifies the SCUs associated with the applicable group, and transmits an update program command to each member of the group, such as SCU 124.
  • Control facility 10 further comprises the means to transfer an update or updates of the targeted program in response to individual and/or multiple OTA reprogramming acknowledgments from applicable SCUs.
  • SCU 124 responds to an unsolicited program update command from base station 112 in the same manner as when SCU 124 first transmits an update request message. In other words, SCU 124 recognizes the beginning of an OTA reprogramming event with reception of an update program command, regardless of how the event is initiated.
  • FIGURE 3 illustrates in greater detail base station 112 and a portion of control facility 10 responsible for performing over-the-air updates in accordance with one embodiment of the present invention.
  • Control facility 10 comprises transceiver interface (IF) 305, which communicates with bases station 112, message controller 310, network interface (IF) 315, update supervisor 320, and memory 325, which stores target program 330.
  • Target program 330 is the update (or replacement) program that must be transmitted to SCU 124 for installation in all or part of flash ROM 220 in order to upgrade and/or replace one or more of the programs therein.
  • Transceiver IF 305 transfers incoming and outgoing messages between base station 112 and message controller 310.
  • Message controller 310 performs conventional wireless messaging functions and transfers data between transceiver IF 305 and network IF 315.
  • Message controller 310 also transfers data between update supervisor 320 and either or both of transceiver IF 305 and network IF 315. Under the direction of update supervisor 320, message controller 310 recognizes the initiation of an OTA update procedure, transferring target program 330 as required in support of the OTA update, providing necessary responses during the progression of the OTA update, and returning to normal operation once the OTA update has been completed.
  • Network IF 315 comprises means for transferring data between one or more end-users and message controller 310.
  • Network IF 315 may interface with end-users through various means, including but not limited to base stations associated with network 10, the public switched telephone network (PSTN) , other wireless networks, and other well known and/or specialized interfaces.
  • Update supervisor 320 comprises means for recognizing, monitoring, and/or coordinating an OTA update procedure in conjunction with message controller 310. In addition, update supervisor 320 transfers a replacement program between message controller 310 and target program 330 storage space in memory 325.
  • FIGURE 4 depicts flow diagram 400, which illustrates an exemplary over-the-air (OTA) update procedure in network 100 in accordance with one embodiment of the present invention.
  • exemplary control facility 10 initiates a reprogramming event by transmitting an update command through base station 112 to SCU 124 (process step 405) .
  • Control facility 10 may transmit the update command in response to internally generated or externally received commands or trigger signals, in response to expiration of a time interval, or in response to an OTA update request message from SCU 124.
  • SCU 124 recognizes the update command from control facility 10 in an incoming message, causing message controller 215 to halt operation of on-going program (s) , to transfer a copy of update program 224 to update program 234 space in RAM 230, and to transfer program control to update program 234 (process step 410) .
  • an automatic acknowledgment message is transferred by SCU 124 to control facility 10 through base station 112, per standard message networking requirements.
  • control facility 10 transfer target program 330 over the air through base station 112 (process step 415) .
  • SCU 124 stores the received program in downloaded target program 232 space in RAM 230. Under the direction of copy control 238, SCU 124 causes at least a portion of downloaded target program 234 to be copied into at least a portion of flash ROM 220 (process step 420) .
  • Message controller 215 returns program control to flash ROM 220 and the new replacement is executed (process step 425) .
  • SCU 124 returns to "normal" operation until another update command is received.

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

Abstract

L'invention concerne un contrôleur de mise à jour, à l'usage d'un dispositif de messagerie sans fil, conçu pour effectuer une mise à jour par radio d'un premier programme stocké dans une mémoire morte (ROM) (220) effaçable dans un dispositif de messagerie sans fil. Le contrôleur de mise à jour comprend: 1) un émetteur-récepteur (210) de messagerie sans fil d'une station de base dans un réseau sans fil, et 2) un contrôleur de messagerie (215) couplé à l'émetteur-récepteur pour détecter un message radio de mise à jour émis par la station de base. En réponse à la détection dudit message, le contrôleur de messagerie (215) transfère un programme (224) de contrôle de mise à jour stocké dans la mémoire morte (ROM) (220) effaçable à une mémoire vive (RAM) couplée au contrôleur de message (215) et exécute le programme de contrôle de mise à jour à partir de la RAM (230). Sous le contrôle du programme (224) de contrôle de mise à jour dans la RAM (230), le contrôleur de messagerie (215) reçoit par radio un programme de remplacement et écrase au moins une partie du premier programme stocké dans la ROM (220).
PCT/US2000/024022 1999-09-01 2000-08-01 Systeme et procede de reprogrammation par radio d'un dispositif avance de messagerie sans fil WO2001017214A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69489/00A AU6948900A (en) 1999-09-01 2000-08-01 System and method for over-the-air reprogramming of an advanced wireless messaging device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38746399A 1999-09-01 1999-09-01
US09/387,463 1999-09-01

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WO2001017214A1 true WO2001017214A1 (fr) 2001-03-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1398983A1 (fr) * 2002-09-12 2004-03-17 Sagem SA Procédé de mise à jour à distance d'un logiciel embarqué dans un Téléphone mobile et système de mise en oeuvre
GB2419784A (en) * 2002-02-27 2006-05-03 Motorola Inc Downloading software in radio communication networks
EP1772032A1 (fr) * 2004-07-30 2007-04-11 Siemens Aktiengesellschaft Procede pour configurer un terminal mobile, terminal mobile configurable et reseau de telephonie mobile associe
WO2007087918A1 (fr) * 2006-02-01 2007-08-09 Siemens Aktiengesellschaft Terminal et procede pour l'actualisation de codes de programme d'un terminal

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Publication number Priority date Publication date Assignee Title
US5761618A (en) * 1994-12-22 1998-06-02 Bell Atlantic Mobile Systems, Inc. Updating technique for downloading new system identification (SID) list into a handset
US6023620A (en) * 1997-02-26 2000-02-08 Telefonaktiebolaget Lm Ecrisson Method for downloading control software to a cellular telephone
US6041124A (en) * 1995-12-19 2000-03-21 Sony Corporation Radio communication system and method and mobile communication terminal device
US6044265A (en) * 1995-06-05 2000-03-28 Bellsouth Corporation Methods and apparatus for cellular set programming

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US5761618A (en) * 1994-12-22 1998-06-02 Bell Atlantic Mobile Systems, Inc. Updating technique for downloading new system identification (SID) list into a handset
US6044265A (en) * 1995-06-05 2000-03-28 Bellsouth Corporation Methods and apparatus for cellular set programming
US6041124A (en) * 1995-12-19 2000-03-21 Sony Corporation Radio communication system and method and mobile communication terminal device
US6023620A (en) * 1997-02-26 2000-02-08 Telefonaktiebolaget Lm Ecrisson Method for downloading control software to a cellular telephone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2419784A (en) * 2002-02-27 2006-05-03 Motorola Inc Downloading software in radio communication networks
GB2419784B (en) * 2002-02-27 2006-10-11 Motorola Inc Software content downloading methods in radio communication networks
US7743115B2 (en) 2002-02-27 2010-06-22 Motorola, Inc. Software content downloading methods in radio communication networks
EP1398983A1 (fr) * 2002-09-12 2004-03-17 Sagem SA Procédé de mise à jour à distance d'un logiciel embarqué dans un Téléphone mobile et système de mise en oeuvre
FR2844662A1 (fr) * 2002-09-12 2004-03-19 Sagem Procede de mise a jour a distance d'un logiciel embarque dans un telephone mobile et systeme de mise en oeuvre
EP1772032A1 (fr) * 2004-07-30 2007-04-11 Siemens Aktiengesellschaft Procede pour configurer un terminal mobile, terminal mobile configurable et reseau de telephonie mobile associe
WO2007087918A1 (fr) * 2006-02-01 2007-08-09 Siemens Aktiengesellschaft Terminal et procede pour l'actualisation de codes de programme d'un terminal

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