WO2011006321A1 - Procédé et appareil permettant de déterminer une passerelle de desserte pour un équipement d'utilisateur, en vue de la notification d'une relation de topologie - Google Patents

Procédé et appareil permettant de déterminer une passerelle de desserte pour un équipement d'utilisateur, en vue de la notification d'une relation de topologie Download PDF

Info

Publication number
WO2011006321A1
WO2011006321A1 PCT/CN2009/075029 CN2009075029W WO2011006321A1 WO 2011006321 A1 WO2011006321 A1 WO 2011006321A1 CN 2009075029 W CN2009075029 W CN 2009075029W WO 2011006321 A1 WO2011006321 A1 WO 2011006321A1
Authority
WO
WIPO (PCT)
Prior art keywords
sgw
enb
topology relationship
determining
list
Prior art date
Application number
PCT/CN2009/075029
Other languages
English (en)
Chinese (zh)
Inventor
丁燕菁
叶敏雅
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2011006321A1 publication Critical patent/WO2011006321A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention relates to a technology for determining a Serving Gateway (SGW) for a User Equipment (UE), and more particularly to a method and apparatus for determining a serving gateway for a user terminal in an Evolved Packet System (EPS). , and the notification method and device of the topology relationship.
  • SGW Serving Gateway
  • UE User Equipment
  • EPS Evolved Packet System
  • FIG. 1 is a schematic diagram of a network structure of an EPS.
  • an EPS includes the following network elements:
  • the Evolved Radio Access Network provides higher uplink and downlink rates, lower transmission delays, and more reliable wireless transmission.
  • the network element included in the E-RAN is an evolved base station (eNB, Evolved NodeB), which provides radio resources for UE access.
  • eNB evolved base station
  • Evolved NodeB Evolved NodeB
  • GSM evolved Enhanced Data Rate for GSM Evolution Radio Access Network (GREAN), which is a 2G/2.5G wireless access network.
  • GREAN GSM evolved Enhanced Data Rate for GSM Evolution Radio Access Network
  • the 3G wireless access network (UTRAN, UMTS (Universal Mobile Telecommunications System) Terrestrial Radio Access Network) is used to provide various radio access services for the UE.
  • UTRAN Universal Mobile Telecommunications System
  • UMTS Universal Mobile Telecommunications System Terrestrial Radio Access Network
  • the Home Subscriber Server permanently stores user subscription data.
  • Packet Data Network a network that provides services to users.
  • E-Packet Core which provides lower latency and allows more Access to the wireless access system.
  • the evolved packet network includes the following network elements: a Mobility Management Entity (MME), a functional entity of the control plane, a server that temporarily stores user data, and is responsible for managing and storing the UE context (such as the UE's user identity, mobility). The management status and user security parameters, etc., assign a temporary identifier to the user.
  • MME Mobility Management Entity
  • SGW handles all non-access stratum messages between the MME and the UE; triggers paging in System Architecture Evolution (SAE).
  • SAE System Architecture Evolution
  • the SGW is a user plane entity responsible for user plane data routing processing and terminating downlink data of the UE in an idle state. Manage and store the SAE bearer context of the UE, such as IP bearer service parameters and network internal routing information. It is the anchor point of the internal user plane of the 3GPP system. A user can only have one SGW at a time.
  • the packet data network gateway (PGW or PDN GW) is responsible for the UE accessing the PDN gateway, assigning the user IP address, and is the mobility anchor of the 3GPP and non-3GPP access systems. Users can access multiple PDN GWs at the same time.
  • PCRF Policy and Charging Rule Functionality
  • QoS quality of service
  • the functional entity can also control the establishment and release of bearers in the access network.
  • SGSN Service GPRS Support Node
  • UE context such as UE user identity, mobility management status, and User security parameters, etc.
  • assign a temporary identifier to the user, when the UE resides in the routing area or the network is responsible for authenticating the user.
  • the MME determines which SGW the user uses.
  • the selection protocol for the SGW requires selection based on the network topology. In particular, you must choose to connect with the user. If the SGW connected to the eNB is not connected to the eNB accessed by the user, the subsequent user data cannot be transmitted. At the same time, although some SGWs are connected to the eNBs accessed by the users, there may be multiple hop routes between the SGW and the eNB. If such an SGW is selected, the subsequent data transmission delay will increase.
  • the MME that performs the SGW selection cannot know the network topology relationship between the SGW and the eNB.
  • the method for obtaining the SGW and its topology relationship with the eNB can only be statically configured on the MME.
  • the static configuration method has a large amount of data configuration, that is, the eNB, the SGW, and the eNB and SGW of any roaming network need to perform topology static configuration.
  • the workload of modifying the configuration parameters of the entire network is also huge.
  • the SGW error selected for the user terminal is directly caused, so that the UE access fails.
  • the main object of the present invention is to provide a method and an apparatus for determining a serving gateway for a user terminal.
  • the MME can determine the SGW for the user terminal by using the topology relationship between the SGW and the eNB reported by the SGW, and can enable the user terminal.
  • the communication delay reaches a small value.
  • a method for determining a service gateway for a user terminal comprising:
  • the serving gateway SGW determines a topology relationship between the evolved base station eNB and the SGW connected to the SGW, and notifies the mobility management entity MME;
  • the MME determines an SGW for the user terminal according to the topology relationship.
  • the topology relationship between the eNB connected to the SGW and the SGW is: the SGW and a list of eNBs connected to the SGW and having a short physical path.
  • the eNB that is connected to the SGW and has a short physical path is: an eNB that is connected to the SGW and transmits a message with the SGW with a response time less than a set threshold.
  • the determining, by the MME, the SGW for the user terminal according to the topology relationship includes:
  • the SGW of the eNB Determining, by using the identifier information of the eNB, the SGW of the eNB that includes the identifier information of the eNB in the topology relationship by using the identifier information of the eNB, and using the found SGW as the SGW.
  • the SGW accessed by the user terminal.
  • the identifier information of the eNB includes: an IP address of the eNB, a global domain name FQDN of the eNB, or a media access control MAC address of the eNB, where the eNB list in the topology relationship includes: an IP address of the eNB, A list of the FQDN of the eNB or the MAC address information of the eNB.
  • the topology relationship between the eNB connected to the SGW and the SGW is: the SGW and a tracking area TA list in the SGW jurisdiction.
  • the MME determines, according to the topology relationship, the SGW for the user terminal, including:
  • the topology relationship is notified to the MME, including:
  • the MME When the SGW is powered on and when the topology relationship is updated, the MME is notified by an establishment request message at power-on or an update message in an access procedure.
  • a method for notifying a topology relationship including:
  • the MME is notified when the SGW is powered on, or when it is determined that the topology relationship between the eNB connected to the SGW and the SGW is updated.
  • the SGW notifies the MME of the topology relationship by using an establishment request message at power-on or an update message in an access procedure.
  • the topology relationship between the eNB connected to the SGW and the SGW is: An SGW and a list of eNBs connected to the SGW and having a short physical path; wherein, the eNB connected to the SGW and having a short physical path is configured to be connected to the SGW and the response time of transmitting a message with the SGW is less than a set threshold eNB.
  • the topology relationship between the eNB connected to the SGW and the SGW is: the SGW and a tracking area TA list in the SGW jurisdiction.
  • An apparatus for determining a service gateway for a user terminal comprising: a first determining unit, a notification unit, and a second determining unit;
  • a first determining unit configured to determine a topology relationship between the eNB connected to the SGW and the SGW;
  • a notification unit configured to notify the MME of the topology relationship
  • a second determining unit located in the MME, configured to determine an SGW for the user terminal according to the topology relationship.
  • the topology relationship between the eNB and the SGW connected to the SGW is: the SGW and a list of eNBs connected to the SGW and having a short physical path.
  • the eNB that is connected to the SGW and has a short physical path includes: an eNB that is connected to the SGW and transmits a message with the SGW with a response time less than a set threshold.
  • the second determining unit includes: a first determining module, a searching module, and a second determining module;
  • a first determining module configured to determine identifier information of an eNB that the user terminal is currently accessing, where the locating module is configured to use the identifier information of the eNB to find, in the topology relationship, that the eNB is included in the eNB list.
  • SGW of identification information configured to determine identifier information of an eNB that the user terminal is currently accessing, where the locating module is configured to use the identifier information of the eNB to find, in the topology relationship, that the eNB is included in the eNB list.
  • a second determining module configured to use the SGW that is searched by the searching module as the SGW that is accessed by the user terminal.
  • the topology relationship between the eNB connected to the SGW and the SGW is: the SGW and a tracking area TA list in the SGW jurisdiction.
  • the second determining unit includes: a first determining module, a searching module, and a second determining module;
  • a first determining module configured to determine a TA list of an eNB currently accessed by the user terminal, and a searching module, configured to find, in the topology relationship, an intersection of a TA list that is currently accessed by the user terminal SGW;
  • a second determining module configured to use the SGW that is searched by the searching module as the SGW that is accessed by the user terminal.
  • a notification device of a topology relationship comprising: a determining unit and a notifying unit; wherein: a determining unit, configured to determine, when the SGW is powered on, an eNB connected to the SGW and the
  • the topology relationship between the SGWs triggers the notification unit, or triggers the notification unit when the topology relationship between the eNB connected to the SGW and the SGW is updated;
  • a notification unit configured to notify the MME of the topology relationship.
  • the notification unit notifies the MME of the topology relationship by using a setup request message or an update message when the SGW is powered on.
  • the topological relationship between the eNB and the SGW connected to the SGW is: the SGW and a list of eNBs connected to the SGW and having a short physical path; wherein, the SGW is connected to the SGW
  • the eNB with a short physical path is an eNB that is connected to the SGW and transmits a message with the SGW with a response time less than a set threshold.
  • the topology relationship between the eNB connected to the SGW and the SGW is: the SGW and a tracking area TA list in the SGW jurisdiction.
  • the MME when the SGW is powered on or determines the topology relationship between the SGW and the eNB, the MME is actively notified of the topology relationship between the SGW and the eNB connected thereto, so that the MME determines the SGW for the UE.
  • the topology relationship between the SGW and the eNB is quite accurate.
  • the determined SGW will shorten the delay of the UE accessing the service and improve the service quality of the UE.
  • the solution of the invention is simple and practical.
  • FIG. 1 is a schematic diagram of a network structure of an EPS
  • FIG. 2 is a flow chart of a notification method of a topology relationship of the present invention
  • FIG. 3 is a flow chart of a method for determining a service gateway for a user terminal according to the present invention
  • FIG. 4 is a schematic structural diagram of a notification device of a topology relationship of the present invention.
  • FIG. 5 is a schematic structural diagram of a device for determining a service gateway for a user terminal according to the present invention
  • FIG. 6 is a schematic structural diagram of a second determining unit of the present invention
  • Fig. 7 is a schematic view showing another constitution of the second determining unit of the present invention. detailed description
  • the basic idea of the present invention is: when the SGW is powered on or determines the topology relationship between the SGW and the e B, the MME is actively notified of the topology relationship between the SGW and the eNB connected thereto, so that the MME is When the UE determines the SGW, the topology relationship between the SGW and the eNB is quite accurate. The determined SGW will shorten the delay of the UE accessing the service and improve the service quality of the UE.
  • the solution of the invention is simple and practical.
  • the notification method of the topology relationship of the present invention includes the following steps:
  • Step 200 The SGW sends a setup request message or an update message to the MME.
  • the SGW determines the topology relationship between the SGW and the eNB connected thereto, and sends a request message to the MME.
  • the message may be referred to as an establishment request message, where the topology relationship is carried.
  • the topology relationship includes the SGW and a list of eNBs connected to the SGW and having a short physical path, or a list of TAs in the SGW and the SGW jurisdiction.
  • the eNB that is connected to the SGW and has a short physical path is specifically an eNB that is connected to the SGW and transmits a message with the SGW that is smaller than a set threshold.
  • the setting of the threshold is based on Set the value, such as 3 milliseconds (ms), 10ms, etc.
  • the eNB list may be a list of various eNB identities including an IP address of the eNB, a MAC address of the eNB, or a Fully Qualified Domain Name (FQDN) of the eNB.
  • the SGW determines the topology relationship update between the SGW and the eNB connected thereto
  • an update message is sent to the MME, where the update message carries the topology relationship.
  • the topology relationship carried in the message may be the SGW and a list of eNBs connected to the SGW and having a short physical path, and the SGW and a TA list in the SGW jurisdiction.
  • the setup request message and the update message may both be newly set message bodies, and are used to specifically notify the MME of the topology relationship.
  • the establishment request message or the update message may also be an extended message of an existing message, and the topology relationship may be carried therein.
  • Step 201 The MME saves the information sent by the SGW, including an eNodeB list or a TA list.
  • the MME saves the topology relationship obtained from the setup request message or the update message and stores it.
  • the setup request message or the update message carries the SGW and the eNB list that is connected to the SGW and has a short physical path, and the SGW and the TA list in the SGW jurisdiction, the SGW and the SGW are simultaneously stored.
  • the eNB list and the SGW and its TA list are simultaneously stored.
  • Step 202 The MME returns a setup request response message or an update response message to the SGW. It is notified that the SGW acquires the topology relationship.
  • FIG. 3 is a flowchart of a method for determining a serving gateway for a user terminal according to the present invention. As shown in FIG. 3, the method for determining a serving gateway for a user terminal according to the present invention includes the following steps:
  • Step 300 The SGW sends a setup request message or an update message to the MME.
  • the SGW determines the topology relationship between the SGW and the eNB connected thereto, and sends a request message to the MME.
  • the message may be referred to as a setup request message, where the topology relationship is carried. This step is implemented in exactly the same way as step 200.
  • Step 301 The MME saves the information sent by the SGW, including an eNodeB list or a TA list.
  • the MME saves the topology relationship obtained from the setup request message or the update message and stores it. This step is implemented in exactly the same way as step 201.
  • Step 302 The MME returns a setup request response message or an update response message to the SGW. It is notified that the SGW acquires the topology relationship.
  • Step 303 The MME selects the SGW according to the eNodeB list or the TA list of the stored SGW connection.
  • the MME selects the SGW and its eNB list or the SGW and its TA according to the SGW.
  • the service access process of the UE includes an attach request, a tracking update process, a handover process, and the like.
  • the MME provides the SGW selection according to the topology relationship provided by the SGW. If the SGW provides the eNB list, the MME preferentially selects the SGW of the eNB that is currently used by the eNB in the eNB list.
  • the identity information of the eNB includes the IP address of the eNB, the MAC address of the eNB, or the FQDN of the eNB.
  • the MME selects the SGW to preferentially select the SGW that is the largest in the list of TAs that the UE currently uses for the eNB, and the MME allocates the TA list to the user according to the selected The list of TAs under the jurisdiction of the SGW is assigned.
  • the notification device of the topology relationship of the present invention includes a determining unit 40 and a notification unit 41, wherein the determining unit 40 is configured to power on the SGW. Determining a topology relationship between the eNB connected to the SGW and the SGW and triggering the notification unit 41, or determining a topology relationship update between the eNB connected to the SGW and the SGW.
  • the notification unit 41 is configured to notify the MME of the topology relationship.
  • the notification unit 41 notifies the MME of the topology relationship by an establishment request message or an update message when the SGW is powered on.
  • the topological relationship between the eNB and the SGW connected to the SGW is: the SGW and a list of eNBs connected to the SGW and having a short physical path; wherein, the SGW is connected to the SGW and the physical path is short
  • the eNB is an eNB that is connected to the SGW and transmits a message with the SGW with a response time less than a set threshold.
  • the topology relationship between the eNB and the SGW connected to the SGW is: the SGW and the tracking area TA list in the SGW jurisdiction.
  • the notification device of the topology relationship shown in FIG. 4 is set to implement the notification method of the foregoing topology relationship, and the functions of each unit in the device shown in FIG. 4 can be referred to FIG. It is understood from the description of the method that the functions of each unit can be realized by a program running on a processor, or can be realized by a specific logic circuit.
  • the apparatus for determining a serving gateway for a user terminal according to the present invention includes a first determining unit 50, a notifying unit 51, and a second determining unit 52.
  • the first determining unit 50 is configured to determine a topology relationship between the eNB connected to the SGW and the SGW;
  • the notification unit 51 is configured to notify the MME of the topology relationship;
  • the second determining unit 52 is located in the MME. And determining, for the user terminal, the SGW according to the topology relationship.
  • the functions of the first determining unit 50 and the notifying unit 51 are completely the same as those of the determining unit 40 and the notifying unit 41 in FIG. 4, and details thereof will not be described herein.
  • the topology relationship between the eNB and the SGW connected to the SGW is: the SGW and a list of eNBs connected to the SGW and having a short physical path, or the SGW and the TA list in the SGW jurisdiction .
  • the eNB connected to the SGW and having a short physical path is: an eNB.
  • the second determining unit includes a first determining module 520, a searching module 521, and a a determining module 522, where the first determining module 520 is configured to determine the identifier information of the eNB that the user terminal is currently accessing, and the searching module 521 is configured to use the identifier information of the eNB to find the eNB in the topology relationship.
  • the SGW of the eNB's identification information is included in the list; the second determining module 522 is configured to use the SGW searched by the searching module 521 as the SGW accessed by the user terminal.
  • the second determining unit includes a first determining module 523, a searching module 524, and a second determining module 525, wherein the first determining module 523 is configured to determine a TA list of the eNB currently accessed by the user terminal; the searching module 524 is configured to The SGW is configured to find the SGW that has the largest intersection with the TA list of the eNB currently accessed by the user terminal. The second determining module 525 is configured to use the SGW searched by the search module 524 as the SGW accessed by the user terminal.
  • the second determining unit shown in FIG. 6 and FIG. 7 can be understood by referring to the related description in FIG. 3, and the functions of each module can be implemented by running a program on the processor, or The specific logic circuit is implemented.

Landscapes

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

Abstract

La présente invention se rapporte à un procédé permettant de déterminer une passerelle de desserte pour un équipement d'utilisateur (EU), le procédé comprenant les étapes suivantes : une passerelle de desserte (SGW) détermine une relation de topologie entre la SGW et un nœud B évolué (eNB) connecté à la SGW, et elle notifie la relation de topologie à une entité de gestion de la mobilité (MME) ; la MME détermine une SGW pour l'équipement d'utilisateur en fonction de la relation de topologie. La présente invention se rapporte également à un procédé de notification de relation de topologie qui comprend l'étape suivante : quand une SGW est mise sous tension ou que la mise à jour de la relation de topologie entre la SGW et un eNB connecté à la SGW est déterminée, la relation de topologie est notifiée à une MME. La présente invention se rapporte également à un appareil adapté pour mettre en œuvre les procédés susmentionnés. Selon la présente invention, la relation de topologie entre la SGW et le eNB, sur la base de laquelle la MME détermine la SGW pour l'EU, est relativement exacte. De ce fait, la SGW déterminée peut réduire le délai d'accès de l'EU au service, ce qui améliore ainsi la qualité de service pour l'EU.
PCT/CN2009/075029 2009-07-16 2009-11-19 Procédé et appareil permettant de déterminer une passerelle de desserte pour un équipement d'utilisateur, en vue de la notification d'une relation de topologie WO2011006321A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910089388.6 2009-07-16
CN200910089388.6A CN101959275B (zh) 2009-07-16 2009-07-16 为用户终端确定服务网关的及拓扑关系的通知方法与装置

Publications (1)

Publication Number Publication Date
WO2011006321A1 true WO2011006321A1 (fr) 2011-01-20

Family

ID=43448888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/075029 WO2011006321A1 (fr) 2009-07-16 2009-11-19 Procédé et appareil permettant de déterminer une passerelle de desserte pour un équipement d'utilisateur, en vue de la notification d'une relation de topologie

Country Status (2)

Country Link
CN (1) CN101959275B (fr)
WO (1) WO2011006321A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185311A1 (fr) * 2012-06-13 2013-12-19 华为技术有限公司 Nœud de gestion mobile et procédé d'obtention de passerelle de service, passerelle de données et système

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001168924A (ja) * 1999-12-08 2001-06-22 Ntt Docomo Inc アクセスポイント選択方法および移動局
CN101291531A (zh) * 2008-05-30 2008-10-22 中兴通讯股份有限公司 一种跟踪域列表的更新方法
CN101400099A (zh) * 2007-09-27 2009-04-01 华为技术有限公司 负荷信息提供方法、s-gw、服务网关的控制方法及mme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001168924A (ja) * 1999-12-08 2001-06-22 Ntt Docomo Inc アクセスポイント選択方法および移動局
CN101400099A (zh) * 2007-09-27 2009-04-01 华为技术有限公司 负荷信息提供方法、s-gw、服务网关的控制方法及mme
CN101291531A (zh) * 2008-05-30 2008-10-22 中兴通讯股份有限公司 一种跟踪域列表的更新方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (Release 9)", 3GPP TS 23.401 V9.1.0 (2009-06) : 3RD GENERATION PARTNERSHIP PROJECT; TECHNICAL SPECIFICATION GROUP SERVICES AND SYSTEM ASPECTS, no. 9, June 2009 (2009-06-01) *

Also Published As

Publication number Publication date
CN101959275B (zh) 2015-06-03
CN101959275A (zh) 2011-01-26

Similar Documents

Publication Publication Date Title
US9787483B2 (en) Method, system, and controller for routing forwarding
US8855045B2 (en) Method and system for controlling establishment of local IP access
WO2012136097A1 (fr) Passerelle de réseau de commutation par paquets et système de gestion de mobilité de terminal
EP2259657B1 (fr) Procédé pour indiquer la gestion de support de la passerelle de desserte
WO2015062098A1 (fr) Procédé de sélection de réseau et dispositif de réseau central
WO2009000125A1 (fr) Procede permettant d'informer un serveur abonne domestique du stockage d'informations d'adresse de passerelle de reseau a commutation de paquets
WO2009043209A1 (fr) Procédé permettant d'établir une porteuse vers un terminal utilisateur en mode repos
WO2013010415A1 (fr) Procédé, système et sgw pour réaliser une notification d'attributs d'adresse ip
WO2008113235A1 (fr) Procédé pour éviter la libération erronée de ressources pendant une mise à jour de zone de suivi ou un transfert intercellulaire
WO2010031353A1 (fr) Procédé, dispositif et système de traitement de demande de service
WO2012136098A1 (fr) Procédé pour la gestion de mobilité et pour la création de contexte et l'établissement de canal pour un terminal
WO2011098040A1 (fr) Procédé de reprise de réseau 2g/3g, appareils associés et système de communication
WO2009046598A1 (fr) Procédé pour établir une porteuse dédiée pour un terminal utilisateur
WO2010015170A1 (fr) Procédé de traitement, système et appareil de gestion de la mobilité
WO2012142889A1 (fr) Procédé de sélection de passerelle, et dispositif et système pour sa mise en œuvre
WO2012024989A1 (fr) Procédé et système pour une libération de porteuse
WO2008154783A1 (fr) Procédé pour établir un tunnel à partir de sgsn vers la passerelle de service
WO2012130018A1 (fr) Procédé et système pour la prise en charge de mobilité de connexion de déchargement ip
WO2013004121A1 (fr) Procédé et dispositif de traitement d'informations de passerelle locale
WO2010054544A1 (fr) Procédé de radiomessagerie dans un système évolué de domaine paquet de communication mobile
WO2011097989A1 (fr) Procédé d'optimisation de recherche locale de personnes et appareil associé
WO2011009253A1 (fr) Procédé et système de recherche d'un nom de domaine dans un réseau mobile
WO2012028071A1 (fr) Procédé et système pour rechercher une passerelle locale
WO2011050723A1 (fr) Procédé, système et dispositif de sélection d'entité de gestion de mobilité (mme) cible durant un processus de commutation de terminal mobile
WO2011144000A1 (fr) Procédé et appareil de sélection de route

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09847246

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09847246

Country of ref document: EP

Kind code of ref document: A1