Patent application number | Description | Published |
20080259876 | DORMANT SESSION MANAGEMENT ASSOCIATED WITH HANDOVER - Systems and methods according to these exemplary embodiments provide for selectively transmitting a pre-registration, re-registration or de-registration initiation message associated with handing off user equipment between different access systems, e.g., a long term evolution (LTE) system and a high rate packet data (HRPD) system, to reduce dormant sessions. The decision to selectively transmit initiation messages is typically performed by a dormant session management function (DSMF). | 10-23-2008 |
20100037085 | SYSTEMS AND METHODS FOR BULK RELEASE OF RESOURCES ASSOCIATED WITH NODE FAILURE - Systems and methods according to these exemplary embodiments provide for methods and systems for improving efficiency in communications systems by, for example, bulk release of resources upon a partial node failure. Bulk release messages including, for example, at least one identifier associated with a plurality of resources, can be transmitted from a node toward other nodes to release such resources after the node failure. | 02-11-2010 |
20100322083 | DETECTION AND REMOVAL OF ROUTING LOOPS IN A MOBILE INTERNET PROTOCOL NETWORK - A method and a node are provided to detect routing loops in mobile Internet Protocol networks. A legitimate mobile node may register at a home agent by sending a binding message carrying a home address and a care-of address. The home agent stores the addresses in a binding cache entry. It is possible for a malicious node to send a binding message to one HA, resulting in a HoA being assigned by the HA. Then the malicious node may use this HoA as a CoA for registration at another HA. If the malicious MN uses the HoA assigned by the second HA as a CoA and updates the binding at the first HA, a routing loop is created. The present invention verifies the presence of a routing loop responsive to the receipt of the binding message. If a routing loop is detected, the binding cache entry is deleted. | 12-23-2010 |
20100322106 | METHODS AND NODES FOR SETTING UP MULTIPLE PACKET DATA CONNECTIONS OF A USER EQUIPMENT TOWARD AN ACCESS POINT - Methods, a local mobility anchor (LMA) and a mobility access gateway (MAG) are provided for supporting multiple connections of a user equipment (UE) towards a given access point. As a UE connection is set up, the MAG provides a unique identifier (UID) for the connection and sends it toward the LMA. The LMA stores the UID along with an identity of the UE, an address of the MAG and an access point name in a binding cache entry. As the UE sets up an additional connection towards the same access point, the MAG provides another UID, which is also sent to the LMA. The LMA stores a distinct binding cache entry for that distinct UID. If a given connection is released or handed over to another MAG, a UID corresponding to the given connection is used at the LMA to release or update the proper binding cache entry. | 12-23-2010 |
20100322189 | SUPPORTING OPTIMIZED HANDOVER OF A USER EQUIPMENT BETWEEN DISSIMILAR NETWORKS - A method and a mobility management entity (MME) are provided for supporting optimized handover of a user equipment (UE) session between radio access networks (RAN) that may offer different radio access technologies. The MME provides mobility management for the UE session. To support eventual handover tunneling between a first radio network, in which the session is set up, and a second radio network, in which the session may continue, an uplink generic routing encapsulation (GRE) key is reserved upon session set up. The MME requests a packet data gateway (PGW) to allocate and reserve the uplink GRE key, early on in the UE session setup process. Upon handover, the MME provides the reserved key to the second radio network. | 12-23-2010 |
20110200007 | INTERWORKING BETWEEN SYSTEMS USING DIFFERENT IP MOBILITY MANAGEMENT PROTOCOLS - Systems and methods allow 3GPP and non-3GPP access with interworking between GTP-based networks and PMIP-based networks. For handover attachment of a UE, an IWP can be provided the address of the PGW which was used in the initial attachment of the UE so that, for example, an IP address can be maintained for an ongoing data connection established with the UE. Alternatively, the same IWP can operate as the proxy for all data connections with the UE such that the IWP is aware of the PGW used for the initial attachment and can reuse the same PGW for handover. | 08-18-2011 |
20110256856 | UE Detach - The present invention relates to a method for closing all network connections to a detached user equipment. The local mobility anchor (LMA) receives and reads a control message saying that the user equipment is detached and all the network connections must be closed. The LMA performs the instructions in the control message, i.e. closes all the network connections to the user equipment. After the instructions have been executed, the LMA sends an acknowledgement back to indicate which actions have been performed. Thus, the closing of all network connections is done using only one message exchange and thereby saving signalling in the Core Network. | 10-20-2011 |
20110271117 | USER EQUIPMENT (UE), HOME AGENT NODE (HA), METHODS, AND TELECOMMUNICATIONS SYSTEM FOR HOME NETWORK PREFIX (HNP) ASSIGNMENT - A User Equipment (UE), Home Agent node (HA), methods, and a telecommunications system are provided for use during negotiation of IP security associations, such as during an Internet Key Exchange (IKE) procedure, between the UE and the HA. The UE sends to the HA an authentication request comprising an indicator relative to a Home Network Prefix (HNP) to be assigned to the UE. Based on the indicator, the HA assigns a new HNP or re-assigns the HNP already assigned, and sends back a response comprising the assigned HNP. If the UE performs a handover to another access network or establishes a simultaneous binding to the other access network, the UE sends its own HNP in the authentication request thus asking the HA to re-assign the same HNP for the new connection being established. If the UE makes an initial access with a network, the indicator may be left blank, asking for the assignment of a new HNP for the UE. | 11-03-2011 |
20120214502 | OFFLINE DEVICE PAGING - The network resources allocated to Machine Type Communication (MTD) devices (also referred to as Machine-to-Machine (M2M) Devices) can be reduced through the introduction of a new device state in a network. The network device state, referred to as a sleep state, allows the network to offload context information about the device to another network element so that the resources allocated to the sleeping device can be released. When the device needs to be contacted by a network element, the stored context information can be retrieved to facilitate paging the otherwise offline device. | 08-23-2012 |
20120281707 | METHODS PROVIDING PUBLIC REACHABILITY AND RELATED SYSTEMS AND DEVICES - A method of obtaining addressing information may include establishing a communication path through a network between first and second peer devices with a router coupled between the first peer device and the communication path through the network. A communication may be received at the first peer device from the second per device through the communication path and the router. Moreover, a payload of the communication received at the first peer device from the second peer device may include a public reachability address used by the second peer device to transmit the communication through the network and the router to the first peer device. Related methods of providing such addressing information and related devices are also discussed. | 11-08-2012 |
20130005332 | Methods and Apparatus for Multiple Data Packet Connections - A network can handle access attempts by a mix of user equipments (UEs) that do and do not support multiple packet data network connections and do and do not support Internet Protocol version 6 (IPv6) and access attempts from networks that do and do not support multiple PDN connections. A method of operating a Trusted Non-3GPP Access network with a 3GPP network involves an authentication, authorization, and accounting (AAA) proxy in the Trusted Non-3GPP Access network and a UE that supports multiple PDN connections, with the AAA proxy sending an indication to the UE that the network supports multiple PDN connections. | 01-03-2013 |
20130044608 | NODE AND METHOD FOR SIGNALLING IN A PROXY MOBILE INTERNET PROTOCOL BASED NETWORK - Example embodiments are presented herein which relate to signalling in the presence of a Proxy-Call Session Control Function (P-CSCF) node failure or restart in a Proxy Mobile Internet Protocol (PMIP) based network. The example embodiments provide a means for a PGW or GGSN, which functions as a Local Mobility Anchor (LMA), to provide an update or indication of the P-CSCF failure or restart directly to a Serving Gateway, which functions as a Mobility Access Gateway (MAG). | 02-21-2013 |
20130044682 | PMIP PROTOCOL ENHANCEMENT - Example embodiments presented herein are directed towards determining a Proxy Mobile Internet Protocol version 6 (PIMPv6) control plane used by a network node peer in an Internet Protocol version 4 (IPv4) transport network. The example embodiments provide a mechanism in PMIP protocol stack, to allow a Mobility Access Gateway/Local Mobility Anchor (MAG/LMA) node such as SGW (which may be supporting both PMIP draft and PMIP RFC) to decide which PMIP protocol stack shall be used to communicate to the peer node, i.e. LMA/MAG. | 02-21-2013 |
20130044740 | Method and Gateway for Transmission of Router Advertisement - Methods and Gateways (GWs) are provided for efficiently sending a router advertisement message to a User Equipment (UE). The GW comprises an interface, a processor, and an instructions repository that stores instructions that when executed by the processor cause the later to determine the UE is in idle mode, and responsive thereto, to delay a transmission of the router advertisement message to the UE until the UE transitions from the idle mode to an active mode. This is achieved by delaying a paging of the UE. In another embodiment, a method and GW is provided. The GW's processor detects a router advertisement message needs to be sent to the UE, determines the UE is in idle mode and delays a paging of the UE until detecting the UE transitions from the idle mode into an active mode, when the router advertisement message is sent to the UE. | 02-21-2013 |
20130083670 | PMIPV6 MAG RESTORATION - A mechanism to permit an LMA to perform some specific handling once MAG restart is detected is disclosed. If a MAG restart is detected by the LMA, the LMA preferably will not release all corresponding binding in its cache. The LMA may select an alternative MAG which is servicing the same. Then the LMA can send a mobility message to the selected MAG. The mobility message can be triggered by the restart detection or by the received downlink data on one or more valid binding. The mobility message can contains all UE identity that has a valid binding in the LMA and the restarted MAG. | 04-04-2013 |
20130265879 | QCI BASED OFFLOADING - A QoS based selection of access network allows a UE to transmit different data traffic flows using different access technologies. The selection is done in accordance with information provided in the ANDSF. This allows a network operator to determine how different data traffic is routed, which can allow for better network utilization planning | 10-10-2013 |
20130267203 | SENDING PLMN ID AT A SHARED WIFI ACCESS - A UE makes use of an indication of the PLMN ID that it selected in communications with a WiFi access network to ensure that the proper connection to a Evolved Packet core is provided. | 10-10-2013 |
20130272163 | NON-SEAMLESS OFFLOAD INDICATOR - A 3GPP AAA server is able to instruct user equipment that it has been authenticated and authorized for access to a non-3GPP access network, but that access to the Evolved Packet Core has not been approved through the use of a modified Extensible Authentication Protocol message or an enhanced IPMS response. Upon receipt of such notification, the user equipment is able to configure itself to obtain data services through the access network, but will try to create EPC tunnels. This prevents the UE from being unable to connect to a local access network when the 3GPP AAA determines that it is unable to connect to the EPC. | 10-17-2013 |
20130343269 | ROUTING DATA OVER A NON-3RD GENERATION PARTNERSHIP PROJECT TRUSTED NETWORK - A method and system for routing a packet in a non 3rd Generation Partnership Project (“3GPP”) network are provided. In accordance with one aspect, a method includes receiving via a first type interface a 3GPP Policy and Charging Control (“PCC”) rule. The 3GPP PCC rule is evaluated. A local rule associated with the 3GPP PCC rule is determined. The packet is routed on the non-3GPP network to a user equipment using the determined local rule. | 12-26-2013 |
20140031069 | NODE AND METHOD FOR PRIORITY OF APPLICATION BASED HANDLING OF A PAGING REQUEST - Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request. | 01-30-2014 |
20140044098 | METHOD AND APPARATUS FOR ESTABLISHING A PDN CONNECTION - A method for use in establishing a packet data network, PDN, connection from a user equipment or UE, to a 3GPP core network via a non-3GPP access network. The method comprises receiving at the non-3GPP access network a request to establish the PDN connection; communicating with the 3GPP core network to establish a tunnel for the PDN connection between the non-3GPP access network and the 3GPP core network and to assign an IP address for the tunnel, which tunnel IP address is used subsequently by the non-3GPP access network to distinguish between the new PDN connection tunnel and at least one other such PDN connection tunnel already established for the UE, wherein the 3GPP core network is responsible for assigning the IP address, and sending address information from the non-3GPP access network to the 3GPP core network. | 02-13-2014 |
20140050132 | Method For Revocable Deletion of PDN Connection - The invention relates to a method of operating a network node in a telecommunication network, such as an MME. The method comprising: initiating a PDN connection revocable deletion procedure for a device when at least one predetermined criterion is fulfilled; sending a PDN connection revocable deletion request to another network node; receiving a PDN connection revocable deletion response message from said other second network node; and storing data indicating that a PDN connection with said device is revocably deleted. | 02-20-2014 |
20140066047 | Methods and Apparatuses for Automatic Provisioning of External Identifiers used for Machine Type Devices in a 3GPP Network - In one aspect, the teachings herein propose a procedure provided by an appropriately configured 3GPP Core Network (CN), which allows External Identifiers to be provisioned dynamically by the 3GPP operator or an MTC service provider, using the existing 3GPP M2M architecture. As such, these teachings can be understood as providing for automatic activation, modification, deactivation, etc., of MTC service subscriptions or services, using protocol-based signaling between the involved entities, e.g., between a 3GPP HSS and an MTC Server (a Services Capability Server or SCS) and/or an MTC Bootstrapping Server that provides for MTC subscription activations, modifications, cancellations, etc. | 03-06-2014 |
20140093071 | SUPPORT OF MULTIPLE PDN CONNECTIONS OVER A TRUSTED WLAN ACCESS - Modifications to authentication and authorization messages are used to allow an authentication server to query both an access network and a terminal device connecting over the access network to determine whether both nodes support the terminal device forming a plurality of packet data network connections that can support tunnels. This allows a non-3GPP access network to offer terminal devices the ability to connect to a 3GPP core network with multiple connections. | 04-03-2014 |
20140206333 | OFFLINE DEVICE PAGING - The network resources allocated to Machine Type Communication (MTD) devices (also referred to as Machine-to-Machine (M2M) Devices) can be reduced through the introduction of a new device state in a network. The network device state, referred to as a sleep state, allows the network to offload context information about the device to another network element so that the resources allocated to the sleeping device can be released. When the device needs to be contacted by a network element, the stored context information can be retrieved to facilitate paging the otherwise offline device. | 07-24-2014 |
20140341138 | Deferred Address Allocation of IPV4 or IPV6 in Case of Interworking Between Non-3GPP Access and Evolved Packet Core - The application relates to IP address allocation in the context of a user equipment UE connecting to the Evolved Packet Core as standardised by 3GPP, in particular over the S2a interface, where there is a GPRS Tunneling Protocol (GTP) or Proxy Mobile IP (PMIP) tunnel for each PDN connection between the BBF BNG and the 3GPP PGW(s). At the setup of the GTPv2/PMIPv6 tunnel to the PGW, the BNG indicates the PDN type: IPv4-only, IPv6 only, or IPv4v6. The UE is not able or willing to indicate the IP capability it has. Therefore the BNG has to assume either a single IP type PDN connection type (e.g. Pv4ony or Pv6ony) or a dual IP type PDN connection type (i.e. IPv4v6) at tunnel establishment. If there is a mismatch between the UE IP capability and the network assumption, extra resources may be allocated unnecessary. This problem is solved in that the non-3GPP gateway node, e.g. the BNG, sends a message ((b)-(A)) to the 3GPP gateway node, e.g. the PGW, including an indication that the PDN connection is to support the first and a second version of the Internet Protocol, e.g. PDN type “IPv4v6”, with allocation ((C)) initially by the 3GPP gateway node of an IP address for the PDN connection of the first version but not the second version. Following establishment of the PDN connection, when the non-3GPP gateway node receives a second trigger message ((e)) relating to the PDN to trigger allocation of an IP address for the PDN connection of the second version, the non-3GPP gateway node sends a message ((f)-(E)) to the 3GPP gateway node to request the allocation of an IP address for the PDN connection of the second version and, if necessary, the updating of the existing PDN connection. The non-3GPP gateway node receives from the 3GPP gateway node the second version IP address ((H)-(g)) allocated by the 3GPP gateway node for the PDN connection. | 11-20-2014 |
20150016461 | DUPLICATE MAC ADDRESS DETECTION - Systems and methods for differentiating between a duplicate MAC address situation and a multiple MAC address movement situation are provided. A node receives a new MAC address determines if it is a known or unknown MAC address by comparing it with a stored MAC address table. If it is a previously known MAC address, the node initiates a duplicate MAC address detection process to determine if at least one of the duplicate MAC addresses is no longer valid or is the result of a MAC mobility event. | 01-15-2015 |
20150023234 | Method For Revocable Deletion of PDN Connection - The invention relates to a method of operating a network node in a telecommunication network, such as an MME. The method comprising: initiating a PDN connection revocable deletion procedure for a device when at least one predetermined criterion is fulfilled; sending a PDN connection revocable deletion request to another network node; receiving a PDN connection revocable deletion response message from said other second network node; and storing data indicating that a PDN connection with said device is revocably deleted. | 01-22-2015 |
20150023303 | INTERWORKING BETWEEN SYSTEMS USING DIFFERENT IP MOBILITY MANAGEMENT PROTOCOLS - Systems and methods allow 3GPP and non-3GPP access with interworking between GTP-based networks and PMIP-based networks. For handover attachment of a UE, an IWP can be provided the address of the PGW which was used in the initial attachment of the UE so that, for example, an IP address can be maintained for an ongoing data connection established with the UE. Alternatively, the same IWP can operate as the proxy for all data connections with the UE such that the IWP is aware of the PGW used for the initial attachment and can reuse the same PGW for handover. | 01-22-2015 |
20150085752 | NODE AND METHOD FOR PRIORITY OF APPLICATION BASED HANDLING OF A PAGING REQUEST - Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request. | 03-26-2015 |
20150087342 | NODE AND METHOD FOR PRIORITY OF APPLICATION BASED HANDLING OF A PAGING REQUEST - Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request. | 03-26-2015 |