WO2008119779A1 - Procédé et système de mise à disposition de données de localisation dans un système de transfert indépendant du support médiatique - Google Patents

Procédé et système de mise à disposition de données de localisation dans un système de transfert indépendant du support médiatique Download PDF

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Publication number
WO2008119779A1
WO2008119779A1 PCT/EP2008/053797 EP2008053797W WO2008119779A1 WO 2008119779 A1 WO2008119779 A1 WO 2008119779A1 EP 2008053797 W EP2008053797 W EP 2008053797W WO 2008119779 A1 WO2008119779 A1 WO 2008119779A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
location data
location
server
data reference
Prior art date
Application number
PCT/EP2008/053797
Other languages
German (de)
English (en)
Inventor
Hannes Tschofenig
Murugaraj Shanmugam
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2008119779A1 publication Critical patent/WO2008119779A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/005—Control or signalling for completing the hand-off involving radio access media independent information, e.g. MIH [Media independent Hand-off]

Definitions

  • the invention relates to a method and a system for providing location data of a first mobile terminal for a second mobile terminal in a media-independent hand-over (MIH), for example according to the IEEE standard 802.21.
  • MIH media-independent hand-over
  • the IEEE 802.21 standard is used for independent hand-over for networks and offers the possibility to detect a hand-over of another network or to initiate an own hand-over.
  • a handover is a process in a mobile telecommunications network in which a mobile terminal or a mobile station changes during a call or during a data connection from one radio cell to another radio cell. Hand-over is also referred to as hand-off in US-American usage.
  • a mobile terminal moves out of a coverage area or a transmission range of a current radio cell.
  • the quality of the radio channel or organizational reasons such as an overload of a radio cell, may require a handover or a handover.
  • the terminal constantly carries out measurements of the signal strength and the signal quality of the current radio cell. Furthermore, the terminal carries out measurements of the field strength of neighboring cells, for example, the terminal in a GSM network measures the received signal strength of the BCCH channel.
  • the terminal in a GSM network measures the received signal strength of the BCCH channel.
  • different types of hand-overn In an intracellular hand over is changed to another transmission frequency or another time slot within the cell.
  • Intercell hand-over the mobile terminal changes to a neighboring cell and establishes a connection with the base station of this neighboring cell.
  • an Inter-BSC hand-over a hand-over to a neighboring cell connected to another BSC (Base Station Controller) takes place.
  • BSC Base Station Controller
  • hand-over can be distinguished as to whether a connection to a new radio cell is established before or after termination of the connection to the old radio cell.
  • the current connection to the current radio cell is disconnected before the connection to the new radio cell is established.
  • the connection to a new radio cell is established by the mobile terminal before the existing connection to the current radio cell is disconnected. Therefore, for a software handover, there are two simultaneous connections to two different base stations for a time.
  • the mobile terminals may experience configuration information, such as ownership, price information, quality of service QoS, and location information from an access network.
  • configuration information such as ownership, price information, quality of service QoS, and location information from an access network.
  • FIG. 1 shows a diagram for clarifying the conventional procedure for providing location data of a mobile terminal for another mobile terminal according to the prior art.
  • a first mobile terminal (host 1) makes its location data or information about its location available to another mobile terminal (host 2), it sends a request (location query) to a location server.
  • the location server examines the received request, for example, as to whether the first mobile terminal (host 1) is authorized to do so and the current current location or the current position of the requesting terminal (host 1) is known.
  • the location server ascertains the position of the terminal and transmits the determined position or the calculated location data to the requesting first mobile terminal Host 1, for example by transmitting latitude and longitude to the first mobile terminal Host 1 .
  • the first mobile terminal HOST 1 inserts its position in a signaling protocol, for example SIP, and transmits its position to the other mobile terminals, for example to host 2, host 3 via a network, for example via the Internet, as shown in FIG is.
  • the conventional method for providing location data is also referred to as a "Location by Value Mechanism".
  • the location server As soon as the location server provides location data to a requesting mobile terminal, it can forward its location data to many different further terminals without this service being able to be charged by the location server.
  • a further disadvantage is that the location data of a mobile terminal can be outdated if this location data is received and processed by further terminals.
  • the invention provides a method for providing location data of a first mobile terminal for a second mobile terminal in a media-independent hand-over system comprising the following steps:
  • the location data reference is formed by a uniform resource identifier (URI).
  • URI uniform resource identifier
  • the location data of the first mobile terminal is calculated by the location server.
  • the location data from the location server before receiving a Request to obtain a location data reference calculated and stored.
  • the location data of the first mobile terminal are calculated and buffered by the location server after receiving the request originating from the first mobile terminal for obtaining a location data reference.
  • the location data of the first mobile terminal is calculated by the location server upon receipt of the request for the location data originating from the second mobile terminal.
  • the location data reference is transmitted from the first mobile terminal to the second mobile terminal in a SIP (Session Initiation Protocol) message transmission protocol.
  • SIP Session Initiation Protocol
  • the location server after receiving a request from a mobile terminal, the location server first performs an authentication of the requesting terminal.
  • the location data are formed by coordinates of the mobile terminal.
  • the invention further provides a media-independent handover system (MIH) for providing location data of a first mobile terminal for a second mobile terminal, the first mobile terminal sending a request for obtaining a location data reference for its own location data to a location server, which generates the requested location data reference and sends it back to the first mobile terminal, which forwards the received location data reference to the second mobile terminal, wherein the second mobile terminal sends a request for the location data of the first mobile terminal to the location server, indicating the forwarded location data reference, which transmits the requested location data based on the received location data reference to the second mobile terminal.
  • MIH media-independent handover system
  • the invention further provides a server for providing location data of a first mobile terminal for a second mobile terminal in a media independent hand-over (MIH) system, the server upon receipt of a first request for a location data reference from a first mobile terminal requesting the requested location data reference generated and sent to the first mobile terminal, the server after receiving a second request for the location data of the first mobile terminal from a second mobile terminal having the location data reference, the location data associated with the location data reference transfers to the second mobile terminal.
  • MIH media independent hand-over
  • Figure 1 a conventional system for providing location data according to the prior art
  • Figure 2 an embodiment of the inventive system for providing location data
  • FIG. 3 shows a flowchart for illustrating a possible embodiment of the method according to the invention for
  • the system 1 has several mobile terminals 2A, 2B which can communicate with one another via a network 3, for example the Internet. At least one location server 4 is also shot at the network 3.
  • FIG. 3 shows a flow chart of a possible embodiment of the method according to the invention for providing location data of a first mobile terminal 2A for a second mobile terminal 2B in the media-independent hand-over system 1 according to FIG.
  • a first step S1 the first mobile terminal 2A sends a request (location query) for obtaining its location data reference for its location data to the location server 4.
  • the location server 4 checks the request (Location Query), for example, as to whether the first mobile terminal 2A is authenticated for this request.
  • the location server 4 In a further step S2, the location server 4 generates a location data reference or a pointer, for example a uniform resource identifier URI (uniform resource identifier) and sends the generated location data reference (URI) to the first mobile terminal 2A in step S3.
  • a Uniform Resource Identifier consists of a string used to identify a resource.
  • the first mobile terminal 2A transmits the received location data reference or the pointer to the second mobile terminal 2B via the network 3.
  • the location data reference is transmitted, for example, from the first mobile terminal 2A to the second mobile terminal 2B in a SIP (Session Initiation Protocol) -
  • the second mobile terminal 2B now transmits via the network 3 a request for the location data of the first mobile terminal 2A to the location server 4, indicating the location data reference received in step S4, for example the unified resource identifier (FIG. URI).
  • the location server 4 indicating the location data reference received in step S4, for example the unified resource identifier (FIG. URI).
  • the location server 4 transmits the requested location data of the first mobile terminal 2A via the network 3 to the second mobile terminal 2B.
  • the location data of the first mobile terminal 2A can be calculated and buffered by the location server 4 on receipt of the request originating from the first mobile terminal 2A (Location Query).
  • the location data of the first mobile terminal 2A is calculated by the location server 4 only after receiving the request originating from the second mobile terminal 2B for the location data of the first terminal 2A in order to provide the most current possible data.
  • the second mobile terminal 2B first receives a reference to the location data of the first mobile terminal 2A and then fetches the actual location data of the first mobile terminal 2A from the location server 4. In this way, the second mobile terminal 2B can always get the most recent location data of the first mobile terminal 2A. In addition, it is possible for the location server 4 to charge the service for the provision of the location data of the first mobile terminal 2A for the second mobile terminal 2B to the user of the second mobile terminal 2B.
  • the mobile terminals 2A, 2B can be any mobile terminals, for example mobile phones, mobile laptops or even PDAs.
  • the network 3 may be any data network, for example to the Internet or other networks. The data transmission can also be done via radio network.

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

Abstract

La présente invention concerne un procédé permettant de mettre à disposition des données de localisation d'un premier terminal mobile pour un second terminal mobile dans un système de transfert indépendant du support médiatique (media independent Hand-over) (MIH). Ce procédé consiste à envoyer (S1) à un serveur de localisation une demande pour obtenir une référence de données de localisation concernant des données de localisation du premier terminal mobile, à produire (S2) la référence de données de localisation demandée au moyen du serveur de localisation, à envoyer (S3) la référence de données de localisation produite du serveur de localisation au premier terminal mobile, à transmettre (S4) la référence de données de localisation reçue du premier terminal mobile au second terminal mobile, à envoyer (S5) une demande concernant les données de localisation du premier terminal mobile du second terminal mobile au serveur de localisation en indiquant la référence de données de localisation, puis à transmettre (S6) les données de localisation demandées du premier terminal mobile du serveur de localisation au second terminal mobile.
PCT/EP2008/053797 2007-04-02 2008-03-31 Procédé et système de mise à disposition de données de localisation dans un système de transfert indépendant du support médiatique WO2008119779A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007015916.3 2007-04-02
DE102007015916A DE102007015916B4 (de) 2007-04-02 2007-04-02 Verfahren und System zur Bereitstellung von Ortsdaten in einem medienunabhängigen Hand-over-System

Publications (1)

Publication Number Publication Date
WO2008119779A1 true WO2008119779A1 (fr) 2008-10-09

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PCT/EP2008/053797 WO2008119779A1 (fr) 2007-04-02 2008-03-31 Procédé et système de mise à disposition de données de localisation dans un système de transfert indépendant du support médiatique

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WO (1) WO2008119779A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2378823A3 (fr) * 2010-04-15 2012-02-22 Samsung Electronics Co., Ltd. Équipement utilisateur et système serveur pour l'actualisation de données relatives à des nýuds sans fil fixes
GB2482334B (en) * 2010-07-30 2013-03-06 Samsung Electronics Co Ltd A wireless network environment, a mobile device, an information server and a method of providing information in a wireless network environment
EP2413630B1 (fr) * 2010-07-30 2013-07-03 Samsung Electronics Co., Ltd. Système de réseau sans fil et procédé pour la fourniture d'informations dans un système de réseau sans fil

Citations (2)

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US20050288036A1 (en) * 2004-06-25 2005-12-29 Brewer Beth A Geographical location information sharing among wireless devices
US20070072611A1 (en) * 2005-09-29 2007-03-29 Feder Peretz M Information for media independent handover

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DE10201474A1 (de) * 2002-01-16 2003-05-22 Siemens Ag Verfahren zur Bestimmung der Position eines Kommunikationsgeräts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050288036A1 (en) * 2004-06-25 2005-12-29 Brewer Beth A Geographical location information sharing among wireless devices
US20070072611A1 (en) * 2005-09-29 2007-03-29 Feder Peretz M Information for media independent handover

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
TSCHOFENIG SIEMENS NETWORKS GMBH & CO KG H SCHULZRINNE COLUMBIA U H: "GEOPRIV Layer 7 Location Configuration Protocol; Problem Statement and Requirements; draft-tschofenig-geopriv-l7-lcp-ps-03.txt", STANDARD-WORKING-DRAFT, INTERNET ENGINEERING TASK FORCE, IETF, CH, no. 3, 23 October 2006 (2006-10-23), XP015048598, ISSN: 0000-0004 *
WINTERBOTTOM M THOMSON ANDREW J PETERSON NEUSTAR J ET AL: "Rationale for Location by Reference; draft-winterbottom-location-uri- 01.txt", IETF STANDARD-WORKING-DRAFT, INTERNET ENGINEERING TASK FORCE, IETF, CH, no. 1, 20 January 2006 (2006-01-20), XP015044718, ISSN: 0000-0004 *

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DE102007015916B4 (de) 2011-03-10

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