EP1224818A1 - Communication entre un terminal radiotelephonique et une entite de service - Google Patents
Communication entre un terminal radiotelephonique et une entite de serviceInfo
- Publication number
- EP1224818A1 EP1224818A1 EP00964356A EP00964356A EP1224818A1 EP 1224818 A1 EP1224818 A1 EP 1224818A1 EP 00964356 A EP00964356 A EP 00964356A EP 00964356 A EP00964356 A EP 00964356A EP 1224818 A1 EP1224818 A1 EP 1224818A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal
- network
- disconnection
- message
- status message
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/10—Mobility data transfer between location register and external networks
-
- 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
Definitions
- the present invention relates generally to the transmission of data between a mobile radiotelephone terminal and a service entity outside the digital cellular radiotelephone network on which the terminal depends. More particularly, the invention relates to the state of the radiotelephone terminal relative to the network when the entity must communicate a data message to the terminal.
- the radiotelephony network RR is of the GSM 900 or DCS 1800 or DCS 1900 type and the service entity is a PT platform ; as shown schematically in Figure 1.
- the platform can be a server retrieving information from a broadband network such as the Internet or such as an intranet, or from a data base.
- the RR network includes a fixed network through which signaling, control, data and voice messages are transmitted.
- the main entity of the RR network capable of interacting with the terminal MS is a mobile service switch MSC linked to at least one telephone switch with CAA routing autonomy of the PSTN switched telephone network or of a service integration network. ISDN.
- the MSC switch manages communications for visiting mobile terminals, including the terminal MS, located at a given time in the location area served by the MSC switch.
- the other entities of interest to the network RR are a visitor location register VLR connected to the switch MSC, one of the base station controllers BSC connected to the switch MSC and managing in particular the allocation of channels to the visiting mobile terminals, and one of BTS base stations connected to the BSC controller covering the radio cell where the terminal MS is located at the given time.
- the RR radiotelephony network also includes a nominal location register KLR analogous to a database containing for each radiotelephone terminal the international identity IMSI (International Mobile Subsc ⁇ ber Identity) of a SIM chip card (Subscriber Identity Mobile) included in the MS terminal, that is to say the identity of the subscriber owning the SIM card, the subscriber profile of the subscriber and the number of the VLR recorder to which the mobile terminal is temporarily attached.
- IMSI International Mobile Subsc ⁇ ber Identity
- SIM chip card Subscriber Identity Mobile
- the mobile radiotelephone terminal MS of a subscriber comprises a removable microprocessor module, called a SIM chip card connected through a man-machine interface including a card reader in the terminal, this interface serving a keyboard CL, a display A, a ON / OFF button (ON / OFF), and peripheral terminals of the mobile terminal.
- a SIM chip card connected through a man-machine interface including a card reader in the terminal, this interface serving a keyboard CL, a display A, a ON / OFF button (ON / OFF), and peripheral terminals of the mobile terminal.
- the SIM smart card mainly contains a microprocessor PR, a ROM type ME memory including an OS operating system of the card and specific application algorithms, a non-volatile memory MP type EEPROM which contains all the parameters related to the aoonné, in particular a secret code of CHV card owner composed on the keyboard by the subscriber to access a service, and a memory MD of RAM type mainly intended for data processing to receive the microcontroller included in the terminal and to transmit to this microcontroller.
- data messages are transmitted by the PT platform to the terminal.
- MS through a Short Message Service Center SC server.
- the server SC is associated with two access gateways according to the two directions of transmission between the service entity constituted by the platform PT, external to the radiotelephony network RR, and mobile service switches MSC, the address ASC of the server SC serving the platform that can be pre-memorized in the memory MP of the SIM card.
- the two access gateways of type GMSC (Gateway MSC) and I MSC (Inter orkmg MSC) are considered below included in the short message server SC.
- the SC server is associated with or integrated into an MSC switch. As a variant, as shown in FIG.
- the server SC is connected to switches MSC of the network RR through an access network RA, such as a packet transmission network of X.25 type, or a digital network with integration of ISDN services for example through a primary access at 2048 kbit / s with 30 or 23 information channels B and a D channel at 64 kbit / s, or an ATM network.
- the network RA is used in particular to broadcast messages from the platform PT through the short message server SC to predetermined mobile terminals.
- the short message server SC exchanges data messages with the platform PT through an intermediate network RI, for example a packet network of X.25 type, or a high speed network such as the Internet or an intranet according to a communication protocol of the TCP / IP type.
- the PT platform constitutes a server, or an access point or a gateway.
- the platform provides access to a proxy server or to a server for applications to be downloaded via the internet network, the short message server SC and the access network RA in mobile terminals.
- the short message server SC has stored an address of the platform PT compatible with the intermediate network RI.
- the SIM card is of the proactive type in order to trigger actions in the mobile terminal MS according to the GSM recommendation 11.14 (SIM TOOLKIT).
- SIM TOOLKIT GSM recommendation 11.14 proposes an extension of the set of commands of the operating system OS included in the ROM memory ME of the SIM chip card and of the mobile terminal in order to provide the mobile radiotelephone terminal with information by the SIM chip card.
- SMS Short Message Service
- Short messages which have a maximum length, for example of 140 bytes, convey data from the SIM card of the terminal MS to the server SC, and also convey data from the server SC to the SIM chip card.
- the server SC retrieves data messages, such as executable instructions ESMS (Executable Short Message Service), transmitted by the platform PT and encapsulates them appropriately to transmit them via the networks RA and RR to the SIM card.
- ESMS Executable Short Message Service
- the server SC receives short messages transmitted by the home switch MSC and routes them to the platform PT through the network RI without interpreting them.
- the platform PT transmits a short message protocol unit of data UMD according to the data exchange protocol in the intermediate network RI to the short message server SC.
- the server SC returns a UAC acknowledgment protocol unit to confirm receipt of the UMD unit.
- the short message server SC interrogates the nominal location register HLR in order to read there the address of the couple MSC / VLR on which depends the MS terminal.
- the server SC sends the short data message MD to the mobile radio terminal MS through the network RA, the addressed switch MSC and the network RR.
- the SIM card of the MS terminal triggers the transmission of a short delivery acknowledgment message of AC data message ("delivery status") in the RR network.
- the AC message is directed by the MSC / VLR pair to the SC server through the RA network.
- the server SC having read the address APT of the platform PT in the message AC sends an acknowledgment protocol unit UAC to the platform PT to confirm that the short message has been delivered to the terminal MS.
- the terminal MS If the terminal MS is switched off, or is outside of the radio coverage of the RR network, that is to say disconnected from the RR network, the terminal does not receive the message MD which is intended for it and the platform PT will not receive no UAC acknowledgment message relating to the MD message.
- the platform maintains an "unstable" state for the message MD being processed and for any other short messages to be sent successively to the terminal MS.
- the short message server SC attempts to return the short message MD periodically for a predetermined message validity period, for example every 30 seconds for 10 minutes. Failing to receive an acknowledgment message AC from the terminal MS_ before the expiration of the validity period, the server SC erases the short message from its memory for the terminal MS.
- the message server SC short informs HLR and VLR recorders from a lack of acknowledgment message AC of the terminal MS, and sets a flag to a short message waiting state these recorders.
- the server SC keeps in memory the short message MD not transmitted.
- the server SC transmits the short message MD to the terminal MS after the local recorder VLR signals the start of the terminal MS, for example in standby state or for communication.
- ⁇ e terminal participates in a connection procedure "IMSI attach" to signal at least to the the local VLR recorder, or even the HRL recorder, that the terminal has just been connected to the network, that is to say switched on or else put in a coverage area; similarly, the terminal MS signals at least to the local recorder VLR by a message "IMSI DETACH" its transition from the connection state to the disconnection state, or from an area under coverage to an area without coverage.
- the external entity such as the platform, ignores the connection state (on / ON / under cover) or the disconnection state (etemt / OFF / out of cover) of the mobile terminal.
- the invention v ⁇ ⁇ se to overcome this drawback so that the external service entity knows the state of the mobile terminal towards ⁇ equel it intends to send messages and thus only transmits these messages during periods in terminal connection state.
- the method according to the invention for communicating a mobile radiotelephone terminal in a radiotelephone network with a service entity external to the radiotelephone network is characterized by the following steps.
- connection status and disconnection status messages permanently indicate the status of the terminal to the external service entity. Thanks to such indications, the external entity sends data messages, for example short messages through a short message server, only to predetermined mobile terminals that are running and under radio coverage of the radiotelephony network. .
- a set of data messages can be a specific application, for example in a language executable by a browser, such as an applet in JAVA source language, to be downloaded in EEPROM memory smart cards of predetermined mobile terminals. Since this download requires a high number of data messages, the invention ensures that the predetermined terminals are in a condition to receive the data messages and that there is no interruption in the transmission of these messages during the global download of 'an application.
- connection state message transmission corresponding to ⁇ no connection from the terminal to radiotelecommunicationpnome network may respectively conditioning a connection state message transmission corresponding to ⁇ no connection from the terminal to radiotelecommunicationpnome network, and a disconnection state of message transmission corresponding to a disconnection of the terminal from the radio network.
- the step of transmitting a connection status message can take place after switching on, for example by pressing an on / off button, of the terminal and the step of sending a disconnection status message can take place after switching off the terminal. More specifically, the step of transmitting a connection status message can take place at least after a procedure for updating the location of the terminal, and the step of transmitting a disconnection status message can intervene before the transmission of a disconnection message from the terminal to the radiotelephony network signaling the effective connection of the radio resource between the terminal and the network.
- the step of transmitting a connection status message can take place when the terminal is placed under the radio coverage of the network, and the step of transmitting a disconnection status message can intervene when the terminal is placed outside the radio coverage of the network.
- the step of transmitting a disconnection status message occurs as soon as a number of mdodododable frames in a channel for controlling the link between the terminal and the radiotelephony network, detected by the terminal, sets a predetermined threshold during a predetermined duration.
- an address of the external entity or information enabling the address of the external entity to be found is stored in the terminal, preferably in a removable smart card of the terminal, and / or in a radiotelephony network recorder.
- the connection status message and the disconnection status message established by the smart card thus include the address of the external entity, or information enabling the address of the external entity to be found, which can be an identifier of the external entity, whether or not accompanied by the address, for example the internet address, of the external entity.
- connection status message and the disconnection status message are short messages sent to a short message server which is connected to the external entity directly or through a transmission network preferably to broadband, such as internet.
- a short message constituting a connection status message or a disconnection status message is sent to a local recorder attached to a radio cell of the network where the terminal is located in order to read there an address of the short message server. , then is transmitted with a terminal number to the server, and then encapsulated by the server to be transmitted to the external entity in order to modify an indicator for the connection / disconnection state of said terminal.
- connection status message and the disconnection status message are packets transmitted through at least one service node and a gateway node of a packet-switched network to the entity.
- each of the connection and disconnection status messages is transmitted according to an internet protocol, or a packet network protocol, is encapsulated for its transmission in the packet switched network and is transmitted through the internet network or a packet network to the external entity in order to modify a connection / disconnection state indicator of said terminal there.
- the address, such as an internet address, of the external entity is previously stored in the smart card and is included in each status message established by the smart card.
- FIG. 1 is a schematic diagram block of a telecommunication link between a mobile radiotelephone terminal and an external service entity through a short message server connected to a radiotelephone network according to the prior art; commented; - Figure 2 is a block diagram similar to Figure 1, showing message routes according to the invention; and
- FIG. 3 is a schematic block diagram of a telecommunication link inks a mobile radiotelephone terminal and an external service entity through a high speed telecommunication network and a packet switched network connected to a radiotelepnome network such than that shown in FIG. 1, message routes according to the invention are also indicated.
- an external service entity is constituted by a platform PT which is capable of exchanging ae data messages, of the short message type, with a mobile radiotelephone terminal MS with through a short message server SC included in a network architecture similar to FIG. 1.
- short messages in the cellular radio telephone network RR are transmitted in the control channel SACCH (Slow Associated Control CHannel) associated with the terminal MS when the latter is in communication with another terminal, or in a dedicated signaling channel SADCCH (Stand Alone Dedicated Control CHannel).
- SACCH Slow Associated Control CHannel
- SADCCH Stand Alone Dedicated Control CHannel
- the subscription profile of the subscriber having the SIM card in the terminal MS, stored in the localization HRL contains the address ASC of the short message server SC which serves the platform PT.
- the address APT of the platform PT in the intermediate network RI which can be a telephone number or an ASCII character string, is known to the server SC and is also stored in a service table of the EEPROM memory MP of the SIM card linked to the subscriber's subscription profile.
- the terminal MS connects to the radiotelephony network RR.
- This connection can result from a standby (power up) of the terminal MS after having pressed the on / off button O / F in the on state and validated a confidential code composed on the keyboard CL.
- the connection can also result from passage through the terminal MS from a zone not covered radioelectrically by the RR network towards a zone covered by radioelectricity by the RR network.
- the SIM card As soon as the SIM card of the terminal MS has received a location update acceptance message transmitted by the local recorder VLR via the switch MSC, the SIM card establishes a short connection status message MCX containing the address APT of the platform PT read in memory MP.
- the VLR recorder recognizes in the message MCX sent by the switch MSC, the identity TMSI and the address APT contained in the subscription profile of the terminal MS and reads in its memory the address ASC of the short message server SC.
- the VLR recorder transmits through the MSC switch a short modified connection message MMCX containing in addition to the ASC server address the telephone number MSIN (Mobile Subsc ⁇ ber Identification Number) of the terminal MS in the network RR.
- This modified connection message is encapsulated in a protocol unit compatible with the access network RA when this exists between the local switch MSC and the server SC.
- the short message server SC In response to the MMCX message, the short message server SC extracts the address APT in the MMCX message to establish a terminal connection protocol unit UMCX containing the terminal number MSIN and transmit it to the platform PT through the network intermediate RI. In the platform, a status indicator associated with the MSIN number of the terminal MS switches from a disconnection state IDX to a connection state ICX following reception of the UMCX unit.
- the short message server SC acknowledges receipt of the MMCX message by returning through the access network RA a MACX connection acknowledgment protocol unit with the MSIN number to the local recorder VLR which in turn sends back a message short acknowledgment of connection ACX to the terminal MS through the network RR.
- the platform PT can transmit protocol data units UMD to the server SC which retransmits it under short message form of MD data to terminal
- a step E2 the terminal disconnects from the radiotelephony network RR
- This disconnection can result from a power off of the terminal MS after having pressed the on / off button O / F in the stopped state.
- Disconnection can also result from the terminal passing from an area covered by radioelectricity by the RR network to an area not covered by radioelectricity by the RR network.
- this transition from the connected state to the disconnected state leads in practice to a disconnection procedure "IMSI Detach" which mainly consists in the transmission of a disconnection message "IMSI DETACH" by the MS terminal to the MSC switch after the on / off button has been pressed and just before the terminal is effectively powered down.
- the disconnection follows a procedure for releasing the radio link channels between the terminal MS and the controller BSC linked to the corresponding base station BTS when the terminal entering an out-of-coverage area detects in at least one control channels for physical parameters SACCH (Slow Associated Control CHannel) associated with it that the nomore of 23-byte decodable frames detected by the terminal MS during a predetermined urea is greater than a predetermined number.
- SACCH Slow Associated Control CHannel
- the SIM card establishes a short disconnection message MDX containing the address APT of the platform PT read from the memory MP. Then treating the MDX message is similar to that described for the -Dessus MCX connection message •
- the VLR recorder transmits a short disconnection message which is modified, MMDX, with the telephone number MSIN of the terminal MS and which is encapsulated in protocol unit of the network RA, to the short message server SC;
- the short message server SC acknowledges receipt by returning a disconnection acknowledgment protocol unit containing the MSIN number to the local recorder VRL which returns a short disconnection acknowledgment message to the terminal MS;
- the SC server transmits a UMDX disconnection protocol unit containing the MSIN number to the PT platform through the RI network
- the status indicator associated with the MSIN number of the MS terminal switches from the ICX connection state to the IDX disconnection state in response to the UMDX unit.
- the platform PT does not transmit any protocol data unit intended for the terminal MS through the server SC. Therefore, none short message originating indirectly from the platform PT towards the terminal MS does not encomore radio channels of the network RR until the terminal returns to a connection state at another step El.
- an external service entity is constituted by a platform PT which is capable of exchanging data messages through an intermediate network RIN of the internet type to which one is will refer below or to the packet network type according to the X.25 recommendation, and through an access network of the packet switched network type with mobility management and access by radio GPRS (General Packet Radio Service) .
- the platform PT has an APT address according to the IP protocol (Internet Protocol), or according to the X.25 recommendation, which is written beforehand in memory MP in the SIM card of the terminal MS.
- the advantage of the GPRS network is to support, including through the radio link between the terminal and a base station, messages in the form of packets with bit rates significantly higher than the bit rate in the channels RR network traffic and therefore in the low speed SACCH and SDCCH signaling channels conveying short messages.
- the GPRS network authorizes point-to-multipom communications, that is to say the broadcasting of data from the PT platform to mobile radiotelephone terminals predetermined in the RR network.
- the SIM card in the MS terminal is positioned in GPRS mode, in particular to trigger GPRS sessions, following the pressing of a predetermined button or key on the terminal.
- the GPRS packet network comprises at least one SGSN (Servmg GPRS Support Node) service node which is connected to at least one oasis station controller, such as the BSC controller to which the MS terminal is attached, and a gateway node GGSN (Gateway GPRS Support Node) that is connected at least to a data network, such as the internet network RIN serving the platform? ".
- the nodes SGSN and GGSN are connected through the GPRS network although
- the SGSN service node is a router which manages data exchanges with mobile terminals in GPRS mode in the areas covered by the BSC-BTS pairs to which the service node is linked.
- the SGSN node is connected to the nominal location register HLR through the signaling network of the radiotelephony network RR, so that the HLR recorder matches the IMSI identity to the pair of AMS and APT addresses according to the IP protocol, that is to say the correspondence between a routing zone linked to the SGSN node and a localization zone linked to the corresponding switch MSC, in a manner analogous to the correspondence between the temporary identity TMSI and the pair MSIN ec APT according to the first embodiment.
- the radio resource between the terminal MS and the BTS-BSC pair supports messages according to the IP protocol of the intermediate network RIN, and the GPRS network is transparent to IP messages between the SGSN and GGSN nodes thanks to an encapsulation of these messages according to the GPRS network protocol.
- the transmission of a connection message MCX in step E1, or of a disconnection message MDX in step ⁇ 2 generally triggers a new session between the terminal and the platform, and is substantially similar to the first embodiment.
- the generating event of this emission is naturally of the same types as those described for the first realization.
- a session is triggered by the SIM card of the terminal to send an MCX connection status message, or else an MDX disconnection status message, the MCX, MDX message containing the APT address
- the MCX, MDX message depending on the IP protocol transmitted in an SDCCH channel allocated by the SGSN node following the initiation of the session by the terminal's SIM card is routed by the local controller BSC to the SGSN service node.
- the service node SGSN After checking the access to the GPRS network and to the APT platform for the terminal MS in the nominal register HLR, the service node SGSN encapsulates the message MCX, MDX in a protocol unit MMCX, MMDX. Depending on the APT address, the SGSN service node transmits the MMCX, MMDX protocol unit to the GGSN gateway node. The latter encapsulates the MCX, MDX message in a UMCX, UMDX protocol unit intended for the platform, according to the APT address, through the RIN network. After decoding of the UMCX, UMDX protocol unit, the status indicator in the PT platform linked to the MS terminal switches to the ICX connection state, or to the IDX disconnection state.
- the GGSN server sends, in response to a unit of MMCX protocol, or MMDX, a MACX acknowledgment protocol unit which is decapsulated into an ACX acknowledgment message by the SGSN server to send it to the MS terminal.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9912796A FR2799595B1 (fr) | 1999-10-12 | 1999-10-12 | Communication entre un terminal radiotelephonique et une entite de services |
| FR9912796 | 1999-10-12 | ||
| PCT/FR2000/002636 WO2001028265A1 (fr) | 1999-10-12 | 2000-09-22 | Communication entre un terminal radiotelephonique et une entite de service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1224818A1 true EP1224818A1 (fr) | 2002-07-24 |
Family
ID=9550904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00964356A Withdrawn EP1224818A1 (fr) | 1999-10-12 | 2000-09-22 | Communication entre un terminal radiotelephonique et une entite de service |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1224818A1 (fr) |
| JP (1) | JP2003511936A (fr) |
| CN (1) | CN1409931A (fr) |
| AU (1) | AU7530500A (fr) |
| FR (1) | FR2799595B1 (fr) |
| MX (1) | MXPA02003657A (fr) |
| WO (1) | WO2001028265A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4233297B2 (ja) * | 2002-10-07 | 2009-03-04 | 株式会社エヌ・ティ・ティ・ドコモ | 通信システム、移動端末、転送装置及び通信方法 |
| GB2430582B (en) * | 2005-09-26 | 2008-04-09 | Nec Technologies | Method of managing connectivity status for a mobile radio communications device, and such a device |
| EP1947868A1 (fr) * | 2007-01-18 | 2008-07-23 | Research In Motion Limited | Système et procédé pour réaliser la commande à distance d'un noeud de réseau par un dispositif d'équipement (UE) de l'utilisateur |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0777394A1 (fr) * | 1995-12-01 | 1997-06-04 | ALCATEL BELL Naamloze Vennootschap | Méthode et appareil pour transmettre du courrier électronique comme des messages courts à un terminal radio mobile |
| US5768509A (en) * | 1996-04-08 | 1998-06-16 | Adc Newnet, Inc. | Short message server without local customer database |
| WO2000001172A1 (fr) * | 1998-06-29 | 2000-01-06 | Nokia Networks Oy | Procede et systeme pour fournir un service a un abonne |
-
1999
- 1999-10-12 FR FR9912796A patent/FR2799595B1/fr not_active Expired - Fee Related
-
2000
- 2000-09-22 CN CN00817060.6A patent/CN1409931A/zh active Pending
- 2000-09-22 AU AU75305/00A patent/AU7530500A/en not_active Abandoned
- 2000-09-22 EP EP00964356A patent/EP1224818A1/fr not_active Withdrawn
- 2000-09-22 WO PCT/FR2000/002636 patent/WO2001028265A1/fr not_active Ceased
- 2000-09-22 MX MXPA02003657A patent/MXPA02003657A/es unknown
- 2000-09-22 JP JP2001529689A patent/JP2003511936A/ja active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0128265A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1409931A (zh) | 2003-04-09 |
| AU7530500A (en) | 2001-04-23 |
| MXPA02003657A (es) | 2002-10-23 |
| JP2003511936A (ja) | 2003-03-25 |
| FR2799595A1 (fr) | 2001-04-13 |
| FR2799595B1 (fr) | 2001-12-28 |
| WO2001028265A1 (fr) | 2001-04-19 |
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