WO2001028274A1 - A method for transmitting location data in a telecommunication system - Google Patents

A method for transmitting location data in a telecommunication system Download PDF

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Publication number
WO2001028274A1
WO2001028274A1 PCT/FI2000/000876 FI0000876W WO0128274A1 WO 2001028274 A1 WO2001028274 A1 WO 2001028274A1 FI 0000876 W FI0000876 W FI 0000876W WO 0128274 A1 WO0128274 A1 WO 0128274A1
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WO
WIPO (PCT)
Prior art keywords
locating
message
prgm
terminal device
application
Prior art date
Application number
PCT/FI2000/000876
Other languages
French (fr)
Inventor
Petteri Heinonen
Anssi Lindqvist
Jussi Koski
Markku Aaltonen
Original Assignee
Sonera Oyj
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 Sonera Oyj filed Critical Sonera Oyj
Priority to AU77931/00A priority Critical patent/AU7793100A/en
Publication of WO2001028274A1 publication Critical patent/WO2001028274A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • 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
    • 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
    • H04W88/14—Backbone network devices

Definitions

  • the present invention relates to telecommuni- cation systems.
  • the invention relates to a method using which the user transmits location data obtained through the wireless application protocol (WAP, Wireless Application Protocol) to a message server in a telecommunication network, e.g. by means of a short message service (SMS, Short Message Service) .
  • WAP wireless application protocol
  • SMS Short Message Service
  • the telecommunication system in accordance with the invention comprises a terminal device which supports the WAP protocol and includes a WAP client program; a telecommunication network/environment using which the information to be sent and received on the terminal device is transmitted; a locating device for finding out the location data and which locating device is part of the terminal device, or has been connected to the terminal device; a locating application which has been arranged in the terminal device and from which there is a connection to the locating device and the message server, which has been connected to the telecommunication network/environment.
  • the use of the wireless application protocol is becoming common in solutions in which a connection is needed between portable terminal devices, such as mobile stations and the Internet applications, e.g. electronic mail, WWW (World Wide Web), news groups.
  • the wireless .application protocol provides an architecture which adapts mobile phones, browser programs of mobile phones, and the WWW to work as a functional entity.
  • the HTML language (Hyper Text Mark-up Lan- guage) used in the WWW is translated into a WML (Wireless Mark-up Language) designed for the wireless environment, when information is being transmitted to mobile stations.
  • WML Wireless Mark-up Language
  • the WML language is used, but the language may be understood to mean also any other description language consistent with the future WAP standard.
  • the wireless application protocol comprises of the following five layers: wireless application environment (WAE, Wireless Application Environment) , wireless session layer (WSL, Wireless Session Layer) , wireless transaction layer (WTP, Wireless Transaction Layer) , wireless transport layer security (WTLS, Wireless Transport Layer Security) , and wireless datagram layer (WDP, Wireless Datagram Layer) .
  • a wireless application environment is used to mean, e.g. a WTA (WTA, Wireless Telephone Application) , or some other suitable environment. Lowermost is yet a system dependant layer which defines the transfer mode of the information inside the system.
  • Fig. 1 represents a WAP architecture consistent with the WAP specification 1.1 accepted at the moment. The aforementioned specification and other WAP related specifications are available at the Internet address www . wapforum . com .
  • One specific objective of the WAP architec- • ture is to -enable the use of services provided by the Internet on wireless terminals whose data processing capacity, size of display, or storage capacity is small or restricted.
  • Terminals as described above are, e.g. mobile stations and PDAs (PDA, Personal Digital Assistant) .
  • PDA Personal Digital Assistant
  • GPS Global Positioning System
  • the global positioning system is based on 24 satellites which are constantly sending clock data and location data down to the earth via radio path. Based on the signals of three or four satel- lites, the GPS device is able to calculate the location data with sufficient accuracy.
  • GSM Global System for Mobile Communica- tion
  • the user may communicate with other users using the short message service. It is possible to transmit a short message up to 160 characters also to digital telephones .
  • the WAP standard does not include any defini- tions as to how to inquire the location data and how to return them, e.g. to a telecommunication network.
  • the Nokia GPS-SMS Communicator device uses which it has been possible to find out the location co-ordinates and to transmit them in the form of a short message to the desired receiver.
  • the device consists of a GPS device and a Nokia Communicator mobile station which have been connected with a serial cable.
  • the aforementioned device is, however, not based on the wireless applica- tion protocol.
  • the objective of the invention is to eliminate or at . least to alleviate the above mentioned drawbacks.
  • One specific objective of the invention is to disclose a new method using which the location data may be found out and transmitted rapidly through the data transfer system making use of the wireless application protocol.
  • the invention relates to the use of the wireless application protocol, the WAP in finding out the location information and transmitting it to the server of the telecommunication network/environment.
  • the wireless application protocol it is possible to refer to the locating software application included in the terminal device, find out the location information and transmit the location information to the telecom- munication network/environment .
  • the invention relates to a method for finding out the location data and transmitting it in a telecommunication system.
  • the telecommunication system comprises a terminal device which supports the WAP protocol and includes a WAP client program; a telecommunication network/environment using which the infor- mation to be sent and received on the terminal device is transmitted; a locating device for finding out the location data and which locating device is part of the terminal device, or has been connected to the terminal device; a locating application which has been arranged in the terminal device and from which there is a connection to the locating device and the message server, which has been connected to the telecommunication network/environment.
  • the telecommunication network/envi- • ronment is -advantageously a mobile communication net- work .
  • the locating application included in the terminal device is indicated by means of a WAP client program.
  • the indication may be implemented, e.g. in such a way that a separate URL address (URL, Universal Resource Locator) is determined for the locating application.
  • the locating program may therefore be initiated ' by referring to the aforementioned URL address.
  • the locating application is started on the terminal device when the user gives the command to activate the application.
  • the indication of the locating application may also be done by a specific WMLScript function which makes it possible to initiate the locating application.
  • the WMLScript refers to a command language specifically designed for the WAP protocol that is based, e.g.
  • the locating application may be given parameter data, e.g. in conjunction with the initiating of the locating application.
  • This kind of parameter may be, e.g. the transmission frequency of a location data.
  • the operation of the locating device is controlled by means of the locating application.
  • the locating device is, e.g. a device based on the GPS sys- tem or any other device providing locating information.
  • the locating device returns location related information to the locating application.
  • a message of a fixed form is extracted that is sent on the terminal device via the telecommunication network/environment to the message server.
  • the message may be created, e.g. in a WAP client program or, e.g. in the op- " erating system software application.
  • the -message of a fixed form to be created is, e.g.
  • a short message a USSD message (USSD, Unstructured Supplementary Service Data) or a message as defined by the WAP protocol.
  • USSD Unstructured Supplementary Service Data
  • a message server may send an acknowledgement of the aforementioned received message of a fixed form to the terminal device.
  • the user gives a separate permission to transmit the location information to the telecommunication network/environment and further on to the message server. This procedure enables one to avoid transmission of location information to the telecommunication net- work/environment in such a situation when the user has initiated the locating application by mistake or has done it negligently.
  • the present invention it is possible, by means of the wireless application protocol, to implement a system transmitting location information to the telecommunication network.
  • Fig. 1 represents a WAP architecture consistent with the WAP specification 1.1
  • Fig. 2 represents one advantageous system in accordance with the invention.
  • Fig. 3 represents one advantageous example of a signaling diagram illustrating the function of the present invention.
  • the system as illustrated in Fig. 2 comprises a telecommunication network/environment PLMN ' (PLMN, Public Land Mobile Network) and a message server SMSC (SMSC, Short Message Service Center) .
  • the telecommuni- cation network/environment PLMN is advantageously a mobile communication network.
  • the telecommunication network/environment may also be, e.g. a MexE environment (MExE, Mobile Station Application Execution Environment) defined by the ETSI.
  • MExE Mobile Station Application Execution Environment
  • the word telecommunication network is used to mean the same as the combination telecommunication net- work/environment .
  • the message server SMSC is used to mean, e.g. the short message server of a mobile communication network. It must, however, be noticed that the message server SMSC may also mean any other server attached to a telecommunication network PLMN which has been provided with the required functionality.
  • the mobile station MS Connected to the telecommunication network PLMN is a terminal device MS which is advantageously a mobile station.
  • the traffic between the mobile station MS and the mobile communication network PLMN has preferably been arranged via a radio interface.
  • the mobile station MS comprises at least the following components: an operating system OS, a subscriber identity module SIM (SIM, Subscriber Identity Module) , a locating application PRGM and a WAP client program WAE/WTA/WML-deck.
  • the system comprises a USER who manages the mobile station MS.
  • Connected to the mobile station MS is also a locating device GPS which enables one to find out the location information.
  • the locating device GPS may be connected to the mobile- station MS, e.g. by means of a standard serial interface. Alternatively, the locating device GPS may also be a feature integrated with the mobile - station MS.-
  • the MS may communicate with the USER, the WAP client program WAE/WTA/WML-deck, the locating program PRGM and the subscriber identity module SIM.
  • the WAP client program WAE/WTA/WML-deck may give the operating system OS a command to initiate the locating application PRGM in order to obtain the location information. From the locating 'application there is a connection to the locating device GPS. Generally speaking, the operation of the ' locating device GPS is controlled by the locat- ing application PRGM.
  • the subscriber identity module SIM includes network- and user-specific information, and it may also include the address of the message server SMSC.
  • the mobile station MS comprises the part entity ME, which in this example includes at least the WAP client program WAE/WTA/WML-deck and " the operating system OS.
  • Fig. 3 represents one advantageous example of a signaling diagram illustrating the function of the invention.
  • the example as illustrated in Fig. 3, comprises a USER, a WML part WML, the operating system of the terminal device ME-OS, locating application GPS, and a message server SERVER.
  • the terminal device and the message server SERVER communicate with each other by means of a telecommunication network suitable for the purpose.
  • a telecommunication network is, e.g. the mobile communication network.
  • the user has in his or her possession a terminal device capable of utilizing the WAP.
  • the terminal device is preferably a mobile station.
  • the mobile station comprises a locating device, or there is a locating device arranged in its conjunction that enables one to find out, e.g. the location data of a mobile station.
  • the USER selects a WML link WML which indicates that the user wishes to send - his or her -location information to the message server SERVER.
  • the link contains information meant for the operating system ME-OS of the terminal device, and especially a request to initiate the locating application GPS.
  • the operat- ing system ME-OS asks the USER a permission to find out the location information and to send it further on to the telecommunication network, arrow 32a.
  • the purpose 'of this' measure is to try to avoid locating measures initiated by mistake.
  • the USER gives the permission to initiate the locating application GPS, e.g. by giving his or her approval with a key command. In a possible failure situation, one may go back to the page relating to the WAP client program that started the service.
  • the operating system of the terminal device ME-OS finds out the location data of the terminal de- vice, e.g. by the aid of the GPS system, arrows 33a and 33b.
  • a message is created by the operating system ME-OS that contains, e.g. the location information found out and the possible identifying data.
  • the message to be created is, e.g. a short message of a mo- bile communication network.
  • the message that was created is sent via the telecommunication network to the message server SERVER, arrow 34.
  • the operating system ME-OS may give to the WML part an order to give the USER a predetermined WML page as return parameters, arrows 35a and 35b.
  • the WML implementation is as follows.
  • a specific DO element is defined.
  • the DO element consistent with the WAP specification 1.1 is defined as follows:
  • VND . * attributes it is possible to define , e . g . manufacturer- , terminal device- or application-specific types.
  • the types x-location and/or vnd. sonera-loc are defined. It must be noticed that the types x-location and vnd. sonera-loc are just exam- pies of the possible types. In this example, as the DO element appears the following:
  • the number of the SMSC is put , or if the space is empty, the number of the SMSC is checked from the subscriber identity module .
  • the sign " +" in the telephone number is substituted with the sign " - " .
  • the location information may also be sent , e . g . in a USSD message .
  • the place Repeat determines the fact of how many times the piece of information is sent to the network.
  • the length is two hexadecimal marks, and the unit is times.
  • the basic value is 0. It may also depend 'on the terminal device or be blank.
  • the place Refresh determines the fact that the location information is sent " Repeat" times at a " Refresh" interval. The user is asked about the sending of the location information in such a way that the user knows the amount and the points of time of the information to be sent.
  • the length is four hexadecimals and the unit is a second.
  • the basic value is 0. It may also depend on the terminal device or be blank.
  • the place Vtime determines the period of validity of the message for the server.
  • the length is four hexadecimals and the unit is a second.
  • the basic .. value is 384 (a hexadecimal number), i.e. 900 seconds. It may also depend on the terminal device or be blank.
  • the value is anyhow transmitted in the short message.
  • the place Go determines a URL address which is entered after the user has been asked for the permission to send the location data. This address is a so-called return page.
  • the form con- forms to a href attribute consistent with the WAP standard. This information is not transmitted to the server .
  • the place Info stands for the additional information to be sent.
  • the maximum length of the Info field is 35 characters.
  • the aforementioned parameters may depend on the implementation of the application in the terminal device.
  • the creator of the WML applica- - tion may define the parameters.
  • the user - may be asked for the values of the parameters, and by means of the variables the values may be placed, e.g. on a WML page .
  • the structure of the short message to be sent is, e.g. 7 bit long, a short message of a second class.
  • the Internet site http //www. forum. nokia. com/support/communicators/9000i /gps sms9000i.html contains a link to the transfer mode defined by Nokia.
  • the transfer mode is, e.g. $waploc,$GPGGA,$GPVTG,refresh,repeat.vtime,info.
  • $Waploc is an identifier determining the type of the message to be sent .
  • the contents of the $GPGGA and the $GPVTG are defined in the solution presented by Nokia . Refresh, repeat, vtime, and info are fields presented above .
  • the WML implementation makes use of the post manner .
  • the definition of the element DO is , e . g . as follows :

Abstract

A method for finding out location data and transmitting it in a telecommunication system comprising a terminal device (MS) which supports the WAP protocol and contains a WAP client program; a telecommunication network/environment (PLMN) via which the information to be sent and received on the terminal device (MS) is transmitted; a locating device (GPS) which is part of the terminal device (MS) or has been connected to the terminal device (MS); a locating application (PRGM) which has been arranged in the terminal device (MS) and from which there is a connection to the locating device (GPS); and a message server (SMSC). The locating application (PRGM) is started by the user of the terminal device (MS). A message of a fixed form is extracted from the location information generated by the locating application (PRGM) and sent to the message server (SMSC).

Description

A METHOD FOR TRANSMITTING LOCATION DATA IN A TELECOMMUNICATION SYSTEM
FIELD OF THE INVENTION
The present invention relates to telecommuni- cation systems. In particular, the invention relates to a method using which the user transmits location data obtained through the wireless application protocol (WAP, Wireless Application Protocol) to a message server in a telecommunication network, e.g. by means of a short message service (SMS, Short Message Service) . The telecommunication system in accordance with the invention comprises a terminal device which supports the WAP protocol and includes a WAP client program; a telecommunication network/environment using which the information to be sent and received on the terminal device is transmitted; a locating device for finding out the location data and which locating device is part of the terminal device, or has been connected to the terminal device; a locating application which has been arranged in the terminal device and from which there is a connection to the locating device and the message server, which has been connected to the telecommunication network/environment.
BACKGROUND OF THE INVENTION
The use of the wireless application protocol is becoming common in solutions in which a connection is needed between portable terminal devices, such as mobile stations and the Internet applications, e.g. electronic mail, WWW (World Wide Web), news groups. The wireless .application protocol provides an architecture which adapts mobile phones, browser programs of mobile phones, and the WWW to work as a functional entity. The HTML language (Hyper Text Mark-up Lan- guage) used in the WWW is translated into a WML (Wireless Mark-up Language) designed for the wireless environment, when information is being transmitted to mobile stations. At present, as the description language of the WAP standard, the WML language is used, but the language may be understood to mean also any other description language consistent with the future WAP standard. The wireless application protocol comprises of the following five layers: wireless application environment (WAE, Wireless Application Environment) , wireless session layer (WSL, Wireless Session Layer) , wireless transaction layer (WTP, Wireless Transaction Layer) , wireless transport layer security (WTLS, Wireless Transport Layer Security) , and wireless datagram layer (WDP, Wireless Datagram Layer) . A wireless application environment is used to mean, e.g. a WTA (WTA, Wireless Telephone Application) , or some other suitable environment. Lowermost is yet a system dependant layer which defines the transfer mode of the information inside the system. Fig. 1 represents a WAP architecture consistent with the WAP specification 1.1 accepted at the moment. The aforementioned specification and other WAP related specifications are available at the Internet address www . wapforum . com .
One specific objective of the WAP architec- • ture is to -enable the use of services provided by the Internet on wireless terminals whose data processing capacity, size of display, or storage capacity is small or restricted. Terminals as described above are, e.g. mobile stations and PDAs (PDA, Personal Digital Assistant) . For finding out the location information there is a solution, e.g. the global positioning system (GPS; Global Positioning System) , which provides the user with co-ordinate information by means of a specific GPS device. The global positioning system is based on 24 satellites which are constantly sending clock data and location data down to the earth via radio path. Based on the signals of three or four satel- lites, the GPS device is able to calculate the location data with sufficient accuracy.
In the Pan-European digital mobile communication system (GSM, Global System for Mobile Communica- tion) , the user may communicate with other users using the short message service. It is possible to transmit a short message up to 160 characters also to digital telephones .
The WAP standard does not include any defini- tions as to how to inquire the location data and how to return them, e.g. to a telecommunication network.
Previously known is a solution, the Nokia GPS-SMS Communicator device using which it has been possible to find out the location co-ordinates and to transmit them in the form of a short message to the desired receiver. The device consists of a GPS device and a Nokia Communicator mobile station which have been connected with a serial cable. The aforementioned device is, however, not based on the wireless applica- tion protocol.
OBJECTIVE OF THE INVENTION
The objective of the invention is to eliminate or at . least to alleviate the above mentioned drawbacks. One specific objective of the invention is to disclose a new method using which the location data may be found out and transmitted rapidly through the data transfer system making use of the wireless application protocol.
BRIEF DESCRIPTION OF THE INVENTION
The invention relates to the use of the wireless application protocol, the WAP in finding out the location information and transmitting it to the server of the telecommunication network/environment. In the invention, a possibility is used in which by means of the wireless application protocol it is possible to refer to the locating software application included in the terminal device, find out the location information and transmit the location information to the telecom- munication network/environment .
Although in the text there is a reference to the WAP specification 1.1, the invention is in no way restricted to this version.
The invention relates to a method for finding out the location data and transmitting it in a telecommunication system. The telecommunication system comprises a terminal device which supports the WAP protocol and includes a WAP client program; a telecommunication network/environment using which the infor- mation to be sent and received on the terminal device is transmitted; a locating device for finding out the location data and which locating device is part of the terminal device, or has been connected to the terminal device; a locating application which has been arranged in the terminal device and from which there is a connection to the locating device and the message server, which has been connected to the telecommunication network/environment. The telecommunication network/envi- • ronment is -advantageously a mobile communication net- work .
In the method in accordance with the invention, the locating application included in the terminal device is indicated by means of a WAP client program. The indication may be implemented, e.g. in such a way that a separate URL address (URL, Universal Resource Locator) is determined for the locating application. The locating program may therefore be initiated ' by referring to the aforementioned URL address. The locating application is started on the terminal device when the user gives the command to activate the application. The indication of the locating application may also be done by a specific WMLScript function which makes it possible to initiate the locating application. The WMLScript refers to a command language specifically designed for the WAP protocol that is based, e.g. on the ECMAScript (ECMA, European Computer Manufacturer Association) , which is at least partly based on the JavaScript used in conjunction with the Java programming language. The locating application may be given parameter data, e.g. in conjunction with the initiating of the locating application. This kind of parameter may be, e.g. the transmission frequency of a location data.
The operation of the locating device is controlled by means of the locating application. The locating device is, e.g. a device based on the GPS sys- tem or any other device providing locating information. As a consequence of a locating measure the locating device returns location related information to the locating application. From the location information provided by the locating application, a message of a fixed form is extracted that is sent on the terminal device via the telecommunication network/environment to the message server. The message may be created, e.g. in a WAP client program or, e.g. in the op- " erating system software application. The -message of a fixed form to be created is, e.g. a short message, a USSD message (USSD, Unstructured Supplementary Service Data) or a message as defined by the WAP protocol. To the beginning of a message of a fixed form, it is possible to add a specific identifying piece of informa- tion that determines the type of the message. By means of this identifying piece of information, the receiver, e.g. .a message server, is able to understand the meaning' of the message. The message server may send an acknowledgement of the aforementioned received message of a fixed form to the terminal device.
In an embodiment of the invention, the user gives a separate permission to transmit the location information to the telecommunication network/environment and further on to the message server. This procedure enables one to avoid transmission of location information to the telecommunication net- work/environment in such a situation when the user has initiated the locating application by mistake or has done it negligently.
Thanks to the present invention, it is possible, by means of the wireless application protocol, to implement a system transmitting location information to the telecommunication network.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following section, the invention will be described in detail by the aid of a few examples of its embodiments, in which
Fig. 1 represents a WAP architecture consistent with the WAP specification 1.1,
Fig. 2 represents one advantageous system in accordance with the invention, and
Fig. 3 represents one advantageous example of a signaling diagram illustrating the function of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
The system as illustrated in Fig. 2 comprises a telecommunication network/environment PLMN ' (PLMN, Public Land Mobile Network) and a message server SMSC (SMSC, Short Message Service Center) . The telecommuni- cation network/environment PLMN is advantageously a mobile communication network. The telecommunication network/environment may also be, e.g. a MexE environment (MExE, Mobile Station Application Execution Environment) defined by the ETSI. When speaking about Fig. 2, the word telecommunication network is used to mean the same as the combination telecommunication net- work/environment . The message server SMSC is used to mean, e.g. the short message server of a mobile communication network. It must, however, be noticed that the message server SMSC may also mean any other server attached to a telecommunication network PLMN which has been provided with the required functionality.
Connected to the telecommunication network PLMN is a terminal device MS which is advantageously a mobile station. The traffic between the mobile station MS and the mobile communication network PLMN has preferably been arranged via a radio interface. In this example, the mobile station MS comprises at least the following components: an operating system OS, a subscriber identity module SIM (SIM, Subscriber Identity Module) , a locating application PRGM and a WAP client program WAE/WTA/WML-deck. In addition, the system comprises a USER who manages the mobile station MS. Connected to the mobile station MS is also a locating device GPS which enables one to find out the location information. The locating device GPS may be connected to the mobile- station MS, e.g. by means of a standard serial interface. Alternatively, the locating device GPS may also be a feature integrated with the mobile - station MS.- The operating system OS of the mobile station
MS may communicate with the USER, the WAP client program WAE/WTA/WML-deck, the locating program PRGM and the subscriber identity module SIM. The WAP client program WAE/WTA/WML-deck may give the operating system OS a command to initiate the locating application PRGM in order to obtain the location information. From the locating 'application there is a connection to the locating device GPS. Generally speaking, the operation of the 'locating device GPS is controlled by the locat- ing application PRGM. The subscriber identity module SIM includes network- and user-specific information, and it may also include the address of the message server SMSC. The mobile station MS comprises the part entity ME, which in this example includes at least the WAP client program WAE/WTA/WML-deck and" the operating system OS. Fig. 3 represents one advantageous example of a signaling diagram illustrating the function of the invention. The example as illustrated in Fig. 3, comprises a USER, a WML part WML, the operating system of the terminal device ME-OS, locating application GPS, and a message server SERVER. The terminal device and the message server SERVER communicate with each other by means of a telecommunication network suitable for the purpose. Such a telecommunication network is, e.g. the mobile communication network. The user has in his or her possession a terminal device capable of utilizing the WAP. The terminal device is preferably a mobile station. The mobile station comprises a locating device, or there is a locating device arranged in its conjunction that enables one to find out, e.g. the location data of a mobile station.
As shown by arrow 30, the USER selects a WML link WML which indicates that the user wishes to send - his or her -location information to the message server SERVER. The 'WML interpreters to where the link selected by the USER is referring, arrow 31. The link contains information meant for the operating system ME-OS of the terminal device, and especially a request to initiate the locating application GPS. The operat- ing system ME-OS asks the USER a permission to find out the location information and to send it further on to the telecommunication network, arrow 32a. The purpose 'of this' measure is to try to avoid locating measures initiated by mistake. As shown by arrow 32b, the USER gives the permission to initiate the locating application GPS, e.g. by giving his or her approval with a key command. In a possible failure situation, one may go back to the page relating to the WAP client program that started the service.
The operating system of the terminal device ME-OS finds out the location data of the terminal de- vice, e.g. by the aid of the GPS system, arrows 33a and 33b. A message is created by the operating system ME-OS that contains, e.g. the location information found out and the possible identifying data. The message to be created is, e.g. a short message of a mo- bile communication network. The message that was created is sent via the telecommunication network to the message server SERVER, arrow 34. The operating system ME-OS may give to the WML part an order to give the USER a predetermined WML page as return parameters, arrows 35a and 35b.
In an embodiment as illustrated in Fig. 2, the WML implementation is as follows. In the WAP specification, and especially in a specification concerning the WML, a specific DO element is defined. The DO element consistent with the WAP specification 1.1 is defined as follows:
<!ENTITY % task "go | prev | noop | refresh"> <!ELEMENT fo (%task;)>
<!ATTLIST do type CDATA #REQUIRED label %vdata #IMPLIED name NMTOKEN #IMPLIED optional %boolean; "false" xml:lang NMTOKEN #IMPLIED
%coreattrs;
>
It is possible to define a separate attribute to serve as the TYPE attribute . These are of the form
X-* and x- * . Further as vnd . * and VND . * attributes it is possible to define , e . g . manufacturer- , terminal device- or application-specific types. In an embodiment of the invention, the types x-location and/or vnd. sonera-loc are defined. It must be noticed that the types x-location and vnd. sonera-loc are just exam- pies of the possible types. In this example, as the DO element appears the following:
<do type="x-location" label-'Send location"> <gohref="gps://sms/-358405202000/400?repeat =01 &refresh=000A&vtime=00A0&go="#Main_page"
&info=wap"/> </do>
The above mentioned "href" is generated in the following way : gps://sms/smsc/nro?repeat=01 &refresh=0001 &vtime=0001 & go="url"&info=text.
In the space SMSC, the number of the SMSC is put , or if the space is empty, the number of the SMSC is checked from the subscriber identity module . The sign " +" in the telephone number is substituted with the sign " - " . In the foregoing , an example has been described in which the location information is sent in
- a short message . The location information may also be sent , e . g . in a USSD message . In that case , the value of the href field is going to be , e . g . : gps://ussd/nro?repeat=01&refresh=0001&vtime=0001&go="url"& info=text.
The place Repeat determines the fact of how many times the piece of information is sent to the network. The length is two hexadecimal marks, and the unit is times. The basic value is 0. It may also depend 'on the terminal device or be blank.
The place Refresh determines the fact that the location information is sent " Repeat" times at a " Refresh" interval. The user is asked about the sending of the location information in such a way that the user knows the amount and the points of time of the information to be sent. The length is four hexadecimals and the unit is a second. The basic value is 0. It may also depend on the terminal device or be blank. The place Vtime determines the period of validity of the message for the server. The length is four hexadecimals and the unit is a second. The basic .. value is 384 (a hexadecimal number), i.e. 900 seconds. It may also depend on the terminal device or be blank. The value is anyhow transmitted in the short message.
The place Go determines a URL address which is entered after the user has been asked for the permission to send the location data. This address is a so-called return page. In the task GO, the form con- forms to a href attribute consistent with the WAP standard. This information is not transmitted to the server .
The place Info stands for the additional information to be sent. The maximum length of the Info field is 35 characters.
The aforementioned parameters (repeat, refresh, ...) may depend on the implementation of the application in the terminal device. The creator of the WML applica- - tion may define the parameters. The user -may be asked for the values of the parameters, and by means of the variables the values may be placed, e.g. on a WML page .
The structure of the short message to be sent is, e.g. 7 bit long, a short message of a second class. In practise, it is possible to use the transfer mode of the GPS information defined by Nokia, or some other transfer mode or transmission protocol suitable for ' the ' purpose . The Internet site http : //www. forum. nokia. com/support/communicators/9000i /gps sms9000i.html contains a link to the transfer mode defined by Nokia. In this example, the transfer mode is, e.g. $waploc,$GPGGA,$GPVTG,refresh,repeat.vtime,info. $Waploc is an identifier determining the type of the message to be sent . The contents of the $GPGGA and the $GPVTG are defined in the solution presented by Nokia . Refresh, repeat, vtime, and info are fields presented above .
In the foregoing , an implementation was presented that utilizes the get manner . In an embodiment as illustrated in Fig . 2 , the WML implementation makes use of the post manner . The definition of the element DO is , e . g . as follows :
<do type="x-location" label- 'Send location"> <go method="post" href="gps://sms/-358405202000/400"> <postfield name ="repeat" value="017> <postfield name ="refresh" value="00017> <postfield name ="vtime" value="0001 >
<postfield name ="go" value="url7> <postfield name ="info" value="text"/> </go> </do>
The invention is not restricted to the examples of its embodiments presented above, instead many variations are possible within the scope of the inventive idea defined by the claims.

Claims

1. A method for finding out the location data in a telecommunication system comprising: a terminal device (MS) which supports the WAP pro- tocol and contains a WAP client program; a telecommunication network/environment (PLMN) via which the information to be sent and received on the terminal device (MS) is transmitted; a locating device (GPS) for finding out the loca- tion data and which locating device (GPS) is part of the terminal device (MS) or has been connected to the terminal device (MS) ; a locating application (PRGM) which has been arranged in the terminal device (MS) and from which there is a connection to the locating device (GPS) ; a message server (SMSC) which has been connected to the telecommunication network/environment (PLMN) ; charact e r i s e d in that the method further comprises the steps of: indicating the locating application (PRGM) included in the terminal device (MS) by means of a WAP client program; initiating the locating application (PRGM) with the user of .the terminal device (MS) giving the com- mand to activate it from the WAP client program; controlling the operation of the locating device (GPS) by means of the locating application (PRGI^) ; extracting a message of a fixed form from the location information generated by the locating applica- tion (PRGM) ; sending the aforementioned message of a fixed form via the tele'communication network/environment (PLMN) to the message server (SMSC) .
2. A method as defined in claim 1, char - ac t e ri s ed in that a separate local URL address is determined for the locating application (PRGM) that refers to the locating application (PRGM) and by re- ferring to which the locating application (PRGM) may be initiated.
3. A method as defined in claim 1, characteri sed in that a WMLScript function is deter- mined on the terminal device (MS) by means of which the locating application (PRGM) is indicated and started.
4. A method as defined in any of the preceding claims 1, 2, or 3, characterised in that a message of a fixed form is extracted from the location information generated by the locating application (PRGM) by means of a WAP client program.
5. A method as defined in any of the preceding claims 1, 2, 3, or 4, characterised in that the locating application (PRGM) is given parameter data.
6. A method as defined in any of the preceding claims 1, 2, 3, 4, or 5, characteri sed in that the user of the terminal device (MS) is required to give the permission to send the location information generated by the locating application (PRGM) to the message server (SMSC) .
7. A method as defined in any of the preced- - ing claims -1, 2, 3, 4, 5, or 6, characterised in that an identifying piece of information is attached to said message of a fixed form that determines the type of the message.
8. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, or 7, character- i s e d in that the type of said message of a fixed form is identified in the message server (SMSC) based on said identifying piece of information.
9. 'A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, or 8, charac- t erised in that an acknowledgement message of said received message of a fixed form is sent by the message server (SMSC) to the terminal device (TE) .
10. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, 8, or 9, charac teri sed in that a short message is 'extracted from the location information generated by the locating ap- plication (PRGM) by means of the WAP client program.
11. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, 8, or 9, characteri sed in that a USSD message is extracted from the location information generated by the locating ap- plication (PRGM) by means of the WAP client program.
12. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, 8, or 9, charac teri sed in that a message as defined in the WAP protocol is extracted from the location information generated by the locating application (PRGM) by means of the WAP client program.
13. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12, characteri sed in that the telecommunication network/environment (PLMN) is a mobile communication network .
14. A method as defined in any of the preceding claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, or
- 13, characteri sed in that the locating device (GPS) is a device based on the GPS system.
PCT/FI2000/000876 1999-10-11 2000-10-11 A method for transmitting location data in a telecommunication system WO2001028274A1 (en)

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