WO2014019616A1 - Nœud pour un contexte de minimessage - Google Patents

Nœud pour un contexte de minimessage Download PDF

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Publication number
WO2014019616A1
WO2014019616A1 PCT/EP2012/065021 EP2012065021W WO2014019616A1 WO 2014019616 A1 WO2014019616 A1 WO 2014019616A1 EP 2012065021 W EP2012065021 W EP 2012065021W WO 2014019616 A1 WO2014019616 A1 WO 2014019616A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
mode
currently serving
context
forwarding
Prior art date
Application number
PCT/EP2012/065021
Other languages
English (en)
Inventor
Ralf Keller
Magnus Olsson
Hans Bertil RÖNNEKE
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
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 Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Priority to PCT/EP2012/065021 priority Critical patent/WO2014019616A1/fr
Priority to US13/639,986 priority patent/US9066213B2/en
Publication of WO2014019616A1 publication Critical patent/WO2014019616A1/fr

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Classifications

    • 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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • 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

Definitions

  • the present invention discloses a node for a short message context in a cellular system.
  • SMS Short Message Service
  • SMC Short Message Center
  • the node is arranged to establish a context for a User Equipment, a UE, for the message types SMS, Small Data and Trigger Information.
  • the node is arranged to establish the context when the UE performs an Initial Attach to the cellular system and indicates support for at least one of said message types or for said context as such.
  • the node is arranged to have two modes available for the context, those modes being a "Currently Serving" mode and a "Forwarding" mode, where, in the Currently Serving mode, messages of said types are delivered to the UE, and, in the Forwarding mode, messages of said types are forwarded to a node that is in the Currently Serving mode at the moment.
  • the node is arranged to toggle from the Forwarding mode to the Currently Serving mode if the UE performs a Routing Area Update or a Tracking Area Update. In embodiments, the node is arranged to toggle from the Forwarding mode to the currently serving mode if there is an originating service request from the UE.
  • the node is arranged to toggle from the currently serving mode to the Forwarding mode if another node indicates to the node that the other node is in the currently serving mode.
  • the node is arranged to, when the node toggles from the Forwarding mode to the Currently Serving mode, report this toggling to its Home Subscriber Server or to the Home Location Register.
  • the node is an MME for use in an LTE system.
  • the node is an SGSN for use in a UTRAN or a GERAN system.
  • Fig 1 shows interfaces and nodes in a cellular system with components from various standards
  • Figs 2-6 show examples of short message contexts.
  • Fig 1 shows an overview of a cellular system 100 which as such comprises "sub-systems", i.e. cellular systems which are radio access networks of different kinds of standards.
  • the cellular system 100 comprises nodes and components from these different kinds of cellular standards.
  • the cellular system 100 can accommodate a number of User Equipments, UEs, one of which, 105, is shown by way of example.
  • UEs User Equipments
  • the different kinds of radio access networks which are comprised in the cellular system 100 are a GERAN network 1 10, an UTRAN network 1 15 and an E-UTRAN network 120, sometimes also referred to as an LTE network. It should be pointed out that there are a number of nodes in each network which are not shown in fig 1 , such as, for example, the controlling node of the cell of the UE 105. However, nodes in the different radio access networks which the UE 105 is in connection with include the following, as shown in fig 1 :
  • the GERAN radio access network 1 10 makes use of a Mobile Switching Centre, an MSC 125, and the UTRAN radio access network 1 15 makes use of a Serving GPRS Support Node, an SGSN 130, which can also perform controlling functions in the GERAN network.
  • the E-UTRAN (LTE) radio access network makes use of a Mobility Management Entity, MME 135.
  • interfaces between the different radio access networks 1 10, 1 15 and 120 are interfaces between the different radio access networks 1 10, 1 15 and 120, as well as between the nodes of those radio access networks.
  • Some of these interfaces include the interface between the MSC 125 and the SGSN 130, which is known as the Gs interface, and the interface between the SGSN 130 and the MME 135, known as the S3 interface.
  • the MSC 125 and the MME 135, known as the SGs interface are shown in fig 1.
  • the invention discloses a node which is arranged to establish a context for a UE such as the UE 105 for messages of said short message types.
  • the short message types include the message types SMS, Short Data (i.e. Small Data as defined in 3GPP Specification TS 23.888) and Trigger Information, as defined in, for example, 3GPP specification TS 23.682
  • the context which the node is arranged to establish can be seen as a Short Message context, i.e. an "SM context".
  • the node in question can be either an SGSN for use in an UTRAN or a GERAN system or an MME for use in an LTE system, e.g. the node can be the SGSN 130 and/or the MME 135.
  • the SM context is established by the SGSN 130 or the MME 135 when the UE 105 performs an Initial Attach to the system 100, i.e. when the UE performs a first time Radio Area Update or Tracking Area Update to a serving node, the serving node here being either the MME 135 or the SGSN 130.
  • the UE 105 should also indicate one or more of the following:
  • SMS support A specific indication of support for Short Messages, "SM support”.
  • the indications above can be seen as indications of a "Short Message" ability in the UE 105.
  • the Short Message context has two modes, here referred to as the Currently Serving mode and the Forwarding mode, and the node (i.e. the SGSN/MME) can toggle between these two modes, as triggered by events.
  • the node i.e. the SGSN/MME
  • the SGSN 130 establishes the SM context when the UE 105 performs a first time RAU and also provides an SM indication to the SGSN.
  • the SM indication may, for example, be an indication that the UE 105 supports SMS or Small Data, or the SM context as such.
  • the SM context can also be established by the SGSN 130 if it implicitly assumes that the UE 105 supports SMS.
  • the example of Initial Attach shown in fig 2 would also have been valid for the MME 135 in the E-UTRAN/LTE network 120, in which case the UE 105 would have performed a first time TAU with the corresponding SM indication, as described above.
  • the example shown in fig 3 illustrates another possible event in a node, in this case an MME 135: the UE 105 moves within the cellular system 100 from the UTRAN network 1 15 to the EJJTRAN or LTE network 120, and thus also moves from the SGSN 130 to the MME 135. In connection with the move between the two radio access networks, the UE 105 performs a Tracking Area Update to the MME 135, and also transmits one or more of the SM indications listed previously to the MME 135.
  • the MME 135 establishes the SM context, and assumes the Currently Serving mode.
  • the MME 135 also notifies the SGSN 130 that the MME 135 has now established the SM context for the UE 105 and is in the Currently Serving mode, as a consequence of which the SGSN 130 toggles into the Forwarding Mode, since there is no need for more than one node at a time to be in the Currently Serving mode for one and the same UE.
  • the MME contacts the previously serving node, in this case the SGSN 130, in order to retrieve certain information, such as information on the SM context.
  • the MME 135 knows from information in the TAU if there is a need to establish an SM context at all for the UE. Also, for example, if the SGSN is a "legacy" SGSN, i.e. an SGSN which does not support SM context, then no information on an SM context will be provided by the legacy SGSN, from which the MME can conclude that no SM context need be established in connection with the move.
  • a "legacy" SGSN i.e. an SGSN which does not support SM context
  • a node i.e. either an MME or an SGSN
  • a node will forward short messages destined for the UE 105 to the node which at the moment is in the Currently Serving mode for the UE in question.
  • Fig 4 shows that the "reverse" move as compared to that shown in fig 3 is also possible, i.e. the UE 105 moves from the LTE system 120 to the UTRAN system 1 15, and the "serving SM node" becomes the SGSN 130 instead of the MME 135.
  • the UE performs a Routing Area Update, a RAU, to the SGSN, as well as transmitting one or more of the SM indications listed previously to the SGSN 130.
  • the SGSN 130 will then assume the Currently Serving mode, and will notify the MME 135 of this, following which the MME 135 will assume the Forwarding mode.
  • a node which is in the Currently Serving mode can toggle to the Forwarding mode.
  • a node which is in the Forwarding mode can toggle to the Currently Serving mode.
  • the TAU or the RAU is not the initial attach by that UE to that MME or SGSN.
  • the contacted MME or SGSN toggles to Currently Service mode if it is in the Forwarding Mode.
  • the UE 105 has performed an Initial Attach to the cellular system 100 via a first time RAU to the SGSN 130 and the SGSN 130 has established an SM context for the UE 105 and has entered the Currently Serving mode of the SM context, and the UE then "moves" to the MME 135 (or to another SGSN), as was the case in the example of fig 3, the SGSN 130 will enter the Currently Serving mode when the UE 105 again performs a RAU to the SGSN 130 and moves back to the UTRAN network 1 15 which the SGSN 130 serves.
  • a similar reasoning is valid for the MME 135 once the MME has established an SM context for the UE 105 and has been in the Currently Serving mode, from which the MME 135 has assumed the Forwarding mode.
  • Fig 5 shows how a node, in this example the MME 135, which is capable of the Short Message Context and which is in the Currently Serving mode, delivers an incoming SMS to the UE 105.
  • the MME 135 receives the SMS from another node in the system, and delivers the SMS to its intended recipient, i.e. the UE 105, since the MME 135 is in the Currently Serving mode.
  • a node such as the SGSN 130 or the MME 135 which enters the Currently Serving mode will report this to its Home Location Register, HLR, or to its Home Subscriber Server, HSS, where the address to a UE's Currently Serving node may be stored.
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • Such reports to the HLR/HSS can be sent either when the node establishes the context for the first time or when the node enters the Currently Serving mode from the Forwarding mode.
  • a node which is in the Forwarding node can obtain the address to the node which is in the Currently Serving mode for a certain UE from the UE's HSS or HLR.

Abstract

L'invention concerne un nœud (130, 135) à utiliser dans un système cellulaire (110, 115, 120), agencé pour établir un contexte pour un équipement d'utilisateur, UE (105), pour les types de message SMS, données de faible volume et informations de déclenchement. Le nœud (130, 135) est agencé pour établir le contexte lorsque l'UE (105) effectue un rattachement initial au système cellulaire et indique une prise en charge pour au moins un desdits types de messages. Le nœud (130, 135) est agencé pour avoir deux modes disponibles pour le contexte, à savoir un mode « Desserte en cours » et un mode « Transfert », les messages dans le mode Desserte en cours étant délivrés à l'UE (105) tandis que, dans le mode Transfert, les messages sont transférés à un nœud (130, 135) qui est dans le mode Desserte en cours au même moment.
PCT/EP2012/065021 2011-11-17 2012-08-01 Nœud pour un contexte de minimessage WO2014019616A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2012/065021 WO2014019616A1 (fr) 2012-08-01 2012-08-01 Nœud pour un contexte de minimessage
US13/639,986 US9066213B2 (en) 2011-11-17 2012-08-01 Node for short message context

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/065021 WO2014019616A1 (fr) 2012-08-01 2012-08-01 Nœud pour un contexte de minimessage

Publications (1)

Publication Number Publication Date
WO2014019616A1 true WO2014019616A1 (fr) 2014-02-06

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PCT/EP2012/065021 WO2014019616A1 (fr) 2011-11-17 2012-08-01 Nœud pour un contexte de minimessage

Country Status (1)

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WO (1) WO2014019616A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060136560A1 (en) * 2004-12-06 2006-06-22 Roamware Inc. Scalable message forwarding
US20090129372A1 (en) * 2007-11-16 2009-05-21 At&T Mobility Ii Llc Ims and sms interworking
US20120077467A1 (en) * 2010-09-24 2012-03-29 At&T Intellectual Property I, L.P. Conditional message forwarding functions
US20120093086A1 (en) * 2009-06-26 2012-04-19 Huawei Technologies Co., Ltd. Method, Apparatus and System for Transmitting User Plane Data
US20120102127A1 (en) * 2005-08-05 2012-04-26 Interdigital Technology Corporation Method and system for reporting a short message capability via an ip multimedia subsystem

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060136560A1 (en) * 2004-12-06 2006-06-22 Roamware Inc. Scalable message forwarding
US20120102127A1 (en) * 2005-08-05 2012-04-26 Interdigital Technology Corporation Method and system for reporting a short message capability via an ip multimedia subsystem
US20090129372A1 (en) * 2007-11-16 2009-05-21 At&T Mobility Ii Llc Ims and sms interworking
US20120093086A1 (en) * 2009-06-26 2012-04-19 Huawei Technologies Co., Ltd. Method, Apparatus and System for Transmitting User Plane Data
US20120077467A1 (en) * 2010-09-24 2012-03-29 At&T Intellectual Property I, L.P. Conditional message forwarding functions

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