EP1875711A1 - Method, network unit and system for providing subscriber information of a group call to an interception unit - Google Patents
Method, network unit and system for providing subscriber information of a group call to an interception unitInfo
- Publication number
- EP1875711A1 EP1875711A1 EP06742602A EP06742602A EP1875711A1 EP 1875711 A1 EP1875711 A1 EP 1875711A1 EP 06742602 A EP06742602 A EP 06742602A EP 06742602 A EP06742602 A EP 06742602A EP 1875711 A1 EP1875711 A1 EP 1875711A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- group call
- subscriber information
- network
- network unit
- 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- Withdrawn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
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2281—Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/30—Network architectures or network communication protocols for network security for supporting lawful interception, monitoring or retaining of communications or communication related information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/4061—Push-to services, e.g. push-to-talk or push-to-video
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/80—Arrangements enabling lawful interception [LI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
- H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/20—Aspects of automatic or semi-automatic exchanges related to features of supplementary services
- H04M2203/2044—Group features, e.g. closed user group
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42025—Calling or Called party identification service
- H04M3/42034—Calling party identification service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1324—Conference call
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13288—Closed user groups, CUG
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13372—Intercepting operator
Definitions
- the invention relates to a method, a network unit and a system for providing at least one subscriber information of at least one group call to a monitoring unit (LEA) from a network unit (CSCF) via a communications network.
- LUA monitoring unit
- CSCF network unit
- TSP Telecommunication Service Providers
- ISP Internet Service Providers
- Terminals may be mobile terminals, landline terminals, stationary and mobile computers, or the like.
- Listening services can z. Broadcast, television, multimedia services, multimedia broadcasting services, multicast services, voice over IP (IP), push to talk services ( Group call) etc.
- Lawful interception concepts are available and well-defined for voice applications or services in communication networks, for example cellular mobile radio networks, packet-switched communication networks, fixed networks, IP networks etc.
- subscribers of a group call with the so-called "push to talk over Cellular (PoC) function can not be intercepted yet, as the group call participants can not be identified.
- PoC push to talk over Cellular
- "Push to Talk over Cellular” means that a participant connects to other participants in a previously defined group builds. After establishing the connection, voice communication is possible in such a way that only one subscriber can speak, for example, by permanently pressing a key and the other subscribers of this group can only listen during this time.
- the group call or PoC service is generally based on the use of an IP multimedia subsystem
- Group and List Management Server GLMS
- group ID group identity
- the address a SIP URI, a TEL URI
- the subscriber's identity an MSISDN identity
- the addresses are referred to as Public Service Identities (PSI) in the IP Multimedia subsystem.
- PSI's are standardized in the specification 3GPP TS 23.228, which defines both static PSI's and dynamic PSI's.
- PSI is represented by a URI (Uniform Resource Identifier).
- the group call by means of push to talk (PoC) is only one example among many for group communication that is to be monitored. Other forms of group communication may be, for example, instant messaging (“buddy lists”) or conferencing applications.
- the object of the invention is to propose a simple and efficient solution for providing subscriber information of a group call to a monitoring unit.
- a core of the invention is to be seen in that a network entity, for example a connection status control function (CSCF) of an IP multimedia subsystem, requests a further network entity, for example a group and list management server (GLMS).
- the network unit may be, for example, a switching unit MSC), a serving GPRS support node (SGSN), call state control function (CSCF), etc., with a IRI interface to a monitoring unit.
- the further network unit is a presence server, a conference administration unit, a group list administration unit for what is known as an "instant message" service or presence service
- the request is a request for receiving at least one subscriber information of a group call as subscriber information
- the subscriber list of the group call with the subscriber identities (MSISDN), the SIP URIs, the TEL URIs, etc. is used.
- MSISDN subscriber identities
- SIP URIs the SIP URIs
- TEL URIs the subscriber list of the group call with the subscriber identities (MSISDN), the SIP URIs, the TEL URIs, etc.
- MSISDN subscriber identities
- SIP URIs the subscriber identities
- TEL URIs etc.
- only the subscriber identities and / or the SIP URIs and / or the TEL URIs etc. of at least one subscriber could be queried.
- the request can be made, for example, with a SIP protocol, an H.323 protocol, etc., and contains the group identity (Group ID) of the group call whose subscriber list or subscriber information is to be queried.
- the request is sent by the network unit according to the invention to a PoC unit (push to talk over cellular unit), to a presence server, etc., and the PoC unit or the presence server forwards the request to the further network unit for further Processing continues.
- the sending of the subscriber information from the further network unit then takes place in the same way via the PoC unit to the network unit.
- the further network unit could, of course, encrypt the subscriber information before sending the subscriber information to the network unit, so that no misuse can take place.
- An advantage of the method according to the invention is that a high level of implementation effort can be avoided in a very simple manner.
- FIG. 1 shows a simplified network architecture for carrying out the method according to the invention and FIG. 2 shows a network unit according to the invention.
- FIG. 1 shows a simplified network architecture for carrying out the method according to the invention.
- a terminal UE sets up a so-called session (connection) with one or more further terminals UE.
- the configuration takes place, inter alia, via an access network AN (Access) of a communication network, a network unit CSCF, for example a proxy connection status control function P-CSCF or an operator Serving Call State Control Function S-CSCF of an IP Multimedia Subsystem IMS and a PoC PoC Unit.
- a network unit CSCF for example a proxy connection status control function P-CSCF or an operator Serving Call State Control Function S-CSCF of an IP Multimedia Subsystem IMS and a PoC PoC Unit.
- a law enforcement agency (LEA) with a LEMF interception unit requests an interception permit from an authorized authority.
- Hl-line is used for administrative-communicative data traffic between the monitoring unit LEMF and network units of the communication network.
- a switching interface VS mediumation function device used to transmit the data or the IRI data to the monitoring unit LEMF.
- the tracking data CC are sent via the HS line HI3 and the IRI data via the H2 line HI2 to the monitoring unit LEMF with the delivery function DF2 or DF3.
- the monitoring unit LEMF informs the administration function ADMF via the HI line HIl that the intercept is to be deactivated.
- the connection status control function CSCF is the central signaling node for the switching of services via IP signaling.
- the CSCF uses the HSS database for billing and authentication.
- the CSCF uses the Session Initiation Protocol (HTTP) protocol (an HTTP-like client / server protocol that can convey, for example, multimedia, telephone, conference calls) as a signaling protocol.
- HTTP Session Initiation Protocol
- a terminal UE invites other members of the group call.
- the establishment of a group call is done by the terminal UE, for example by means of a SIP signaling message (SIP INVITE message) via a PoC unit PoC, which monitors and controls the group call.
- SIP INVITE message SIP signaling message
- PoC unit PoC identifies the terminal UE, clarifies whether the terminal is authorized to start a communication for the requested group call. If the terminal is registered and the voice channels are not busy, the invitations (INVITE) are sent to the other members with their group call terminals.
- the PoC unit transmits a so-called 200Ok message PoC and informs the terminal UE.
- the user of the terminal UE, the suspect, and at the same time initiator of the group call receives a notification request (SIP-NOTIFY) from each individual member of the group as confirmation of the invitation message.
- SIP-NOTIFY a notification request
- each member of the group call is uniquely identifiable since the notification message contains the MSISDN number. This information can be obtained from the Network unit CSCF be forwarded in an IRI ticket to the monitoring unit LEMF. If, however, another member of the group call, that is not the initiator of the group call, is to be intercepted, it can not be unequivocally determined which other group members the group call has.
- the network unit CSCF sends to the group and list management server GMLS via the PoC unit a request with the group identity of the group call whose subscriber list is to be queried.
- the SIP command "getmemberlist_groupID" can be used, in response to which the network unit receives the subscriber list with, for example, the MSISDN numbers of the subscribers and can send this list in at least one IRI ticket to the LEMF monitoring unit Information, such as the SIP URI address, the TEL URI address could also be contained in the list.
- the further network unit GLMS could request further data from subscribers of the group call at a presence server PS and transmit it via the PoC.
- the PoC unit could receive the subscriber information received from the further network unit GLMS in at least one IRI ticket directly via the dispatch functions DF3 or DF2 the monitoring unit sends LEMF, which could also be
- the transmission of the certificates for listening remains unaffected by the administration function ADMF to the network unit CSCF. It only has to be ensured that the network unit CSCF and the further network unit GLMS can interpret the certificates and process or understand them.
- FIG. 2 shows a network unit CSCF according to the invention with a receiving unit E, a transmitting unit S and a processing unit V for carrying out the method according to FIG. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Technology Law (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005017806 | 2005-04-18 | ||
PCT/EP2006/003542 WO2006111357A1 (en) | 2005-04-18 | 2006-04-18 | Method, network unit and system for providing subscriber information of a group call to an interception unit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1875711A1 true EP1875711A1 (en) | 2008-01-09 |
Family
ID=36606094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06742602A Withdrawn EP1875711A1 (en) | 2005-04-18 | 2006-04-18 | Method, network unit and system for providing subscriber information of a group call to an interception unit |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090088139A1 (en) |
EP (1) | EP1875711A1 (en) |
CN (1) | CN101208927A (en) |
WO (1) | WO2006111357A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080032728A1 (en) * | 2006-08-03 | 2008-02-07 | Bina Patel | Systems, methods and devices for communicating among multiple users |
US20080235186A1 (en) * | 2007-03-23 | 2008-09-25 | Antti Laurila | Lawful Interception of Search Functionalities |
ATE488106T1 (en) * | 2007-06-14 | 2010-11-15 | Siemens Ag Oesterreich | METHOD FOR STORING AND CONTROLLING DATA TRANSMITTED IN A DIGITAL RADIO NETWORK |
EP2023565A1 (en) * | 2007-08-10 | 2009-02-11 | Nokia Siemens Networks Oy | Method and device for data interception and communication system comprising such device |
WO2009038510A1 (en) * | 2007-09-21 | 2009-03-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Monitoring of instant messaging and presence services |
WO2010078965A1 (en) * | 2009-01-09 | 2010-07-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Lawful interception in a communication network |
US20120155333A1 (en) * | 2010-12-17 | 2012-06-21 | Electronics And Telecommunications Research Institute Of Daejeon | Appratus and method for lawful interception |
US8891739B2 (en) | 2011-10-17 | 2014-11-18 | Qualcomm Incorporated | Apparatus and method for performing precognitive lawful intercept in group calls |
US8712019B2 (en) * | 2011-11-14 | 2014-04-29 | Qualcomm Incorporated | Apparatus and method for performing lawful intercept in group calls |
CN106304130A (en) * | 2015-05-20 | 2017-01-04 | 北京信威通信技术股份有限公司 | A kind of method of real-time monitoring calling in group system |
EP3101930B1 (en) * | 2015-06-04 | 2018-11-07 | BlackBerry Limited | Capturing data from a mobile device through group communication |
Family Cites Families (14)
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US6529486B1 (en) * | 1997-04-11 | 2003-03-04 | Transcrypt International/E.F. Johnson Company | Trunked radio repeater communication system |
US6018668A (en) * | 1997-11-04 | 2000-01-25 | Ericsson Inc. | Method for auto answering a call based on caller ID |
US6208872B1 (en) * | 1998-09-04 | 2001-03-27 | Ericsson Inc. | Method and apparatus for inhibition of calls while roaming |
JP3593100B2 (en) * | 1999-09-07 | 2004-11-24 | ノキア コーポレイション | Ordered delivery of intercepted data |
US6434143B1 (en) * | 1999-11-08 | 2002-08-13 | Mci Worldcom, Inc. | Internet protocol telephony voice/video message deposit and retrieval |
US6970926B1 (en) * | 2000-10-03 | 2005-11-29 | Motorola, Inc. | Dispatch call server in a packet based communication network |
US7039395B2 (en) * | 2000-12-11 | 2006-05-02 | Cingular Wireless Ii, Llc | Method and apparatus for wireless auto-conferencing |
US6898436B2 (en) * | 2002-02-14 | 2005-05-24 | Qualcomm Incorporated | Communication device for joining a user to a group call in a group communication network |
DE10324872B4 (en) * | 2003-06-02 | 2005-04-14 | Siemens Ag | Method and devices for listening to subscribers of a telecommunications network when participating in multicast connections |
US8150437B2 (en) * | 2004-09-09 | 2012-04-03 | Nextel Communications Company L.P. | Architecture to facilitate the monetization of disparate, inter-worked pushed to talk technologies |
US8194640B2 (en) * | 2004-12-31 | 2012-06-05 | Genband Us Llc | Voice over IP (VoIP) network infrastructure components and method |
US9467488B2 (en) * | 2005-02-16 | 2016-10-11 | Sonim Technologies, Inc. | Reducing size of messages over the cellular control channel |
US7603109B2 (en) * | 2005-03-10 | 2009-10-13 | Qualcomm Incorporated | Methods and apparatus for over-the-air subscriptions |
US20070291734A1 (en) * | 2005-05-27 | 2007-12-20 | Medhavi Bhatia | Methods and Apparatus for Multistage Routing of Packets Using Call Templates |
-
2006
- 2006-04-18 CN CNA2006800128653A patent/CN101208927A/en active Pending
- 2006-04-18 US US11/918,829 patent/US20090088139A1/en not_active Abandoned
- 2006-04-18 WO PCT/EP2006/003542 patent/WO2006111357A1/en active Application Filing
- 2006-04-18 EP EP06742602A patent/EP1875711A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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See references of WO2006111357A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101208927A (en) | 2008-06-25 |
WO2006111357A1 (en) | 2006-10-26 |
US20090088139A1 (en) | 2009-04-02 |
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Inventor name: GRUENBAUER, JOHANNES Inventor name: MARAS, DEMET Inventor name: DEUBLER, MARTIN |
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