Nec Corporation

Nec Europe Ltd.

Nec Laboratories Europe Gmbh

Marco Liebsch

Stefan Schmid

Paulo Ferrer Loureiro

Faqir Zarrar Yousaf

Jun Awano

Fabio Giust

Andreas Kunz

Long Le

Frank Zdarsky

Girma Mamuye Yilma

Julien Abeille

Telemaco Melia

A method for performing network function virtualization (NFV) management and orchestration (MANO) operations in a telecommunications network includes collecting, by a mobile network node, mobile network node condition data that specifies network conditions present at the mobile network node, providing, to a distributed NFV-MANO system component located at the mobile network node, the mobile network node condition data, and executing, by the distributed NFV-MANO system component, MANO decision logic. The MANO decision logic provides, based on input that includes at least the mobile network node condition data, at least one MANO operation decision as output. The telecommunications network includes stationary infrastructure components and mobile infrastructure components that communicate with stationary infrastructure components via wireless links, and the mobile network node is one of the mobile infrastructure components of the telecommunications network.

Method for customized, situation-aware orchestration of decentralized network resources

A method for operating a network that includes network functions that have a data-plane separated from a control-plane is provided. The network function of the network functions include network function components. The network function components include a control plane function and data plane functions. During runtime and in case of a predefined state of a first data plane function of the data plane functions, an existing subscription context of the first data plane function and associated data-plane traffic are offloaded to a second data plane function of the data plane functions.

Method and system for operating networks with data-plane and control-plane separated network functions

A method for operating an SDN-based mobile communication system is provided. The system provides a control plane function that possesses information from an access network about location and/or proximity of devices and information about rules and/or policies for setting up sessions for the devices. The system includes a mobile network having a control plane and a data plane, with a network controller being implemented therebetween. The method includes: upon a particular device's request for session establishment, receiving, via signaling and at the control plane, device related information; based on the device related information that is received via the signaling, performing, at the control plane, selection of an abstract data plane node or a group of abstract data plane nodes; and providing, at the control plane, the selected abstract data plane node or the selected group of abstract data plane nodes to the network controller.

SDN-based mobile communication system and method for operating such system

A method for operating an SDN-based mobile communication system, which includes a mobile network having a control plane and a data plane, with a network controller being implemented therebetween, includes: providing a control plane function that possesses information from an access network about location and/or proximity of devices and information about rules and/or policies for setting up sessions for the devices; and the network controller, by collaborative operations with the control plane function, selecting one or multiple data plane nodes that are, based on a particular device's request for session establishment, suitable to act as policy enforcement points for enforcing rules in the data plane that are for enabling connectivity for the particular device.

A method for managing data traffic in a computing network includes determining, by a determining function, processing information for processing one or more packets of an identified flow; stripping header information from the one or more packets of the identified flow by a stripping function; adding tag information to the one or more packets of the identified flow by a tag adding function; storing a mapping between the tag information and the header information in a cache by a mapping function, and processing the one or more packets of the identified flow by the one or more network functions according to the determined processing information. The one or more network functions query the cache using the tag information to retrieve information associated with the tag information from the cache if required to process the one or more packets.

Method and system for managing data traffic in a computing network

A method for performing route optimization between two nodes in network based mobility management, wherein each of the two nodes is associated with an access network via attachment to an access router, the access routers having directly or indirectly assigned a Mobility Access Gateway (MAG) that signals the node's presence to a Mobility Anchor (MA) which maintains the current IP address information along with location information of the node, is characterized in that some specific control for setting up a route optimized path for data packet exchange between the two nodes is assigned to the Mobility Anchors (MA).

Method for performing route optimization between two nodes in network based mobility management

A method and system of relocating user equipment, such as a mobile device in a network from a first mobility anchor to a second mobility anchor, includes providing an identifier address to the user equipment when the latter is anchored to the first mobility anchor or gateway. When the user equipment is relocated to be anchored at the second mobility anchor or gateway, a per-host locator address is associated with the user equipment, the per-host locator address directing network packets to be routed to the second mobility anchor. A destination address of network packets addressed to the identifier address is translated to the per-host locator address, such that the network packets are routed to the second mobility anchor, and the destination address of network packets that are addressed to the per-host locator address are reverse translated to the identifier address, and the packets are forwarded to the user equipment.

Per-host locator to enable mobility gateway relocation in distributed mobility management

A mobility management system in which mobility management for a mobile terminal is performed, including a plurality of mobility anchor nodes configured to communicate with an external network; an access gateway configured to communicate with the mobile terminal and the plurality of anchor nodes, and configured to send, to at least one of the mobility anchor nodes, a packet being relayed between the mobility terminal and the external network; and a control unit having at least one hardware processor configured to execute modules to control the access gateway to switch a destination mobility anchor node of the packet.

Mobility management system, mobility management method, access GW apparatus, mobility management control apparatus, and computer-readable medium

An access gateway (GW) receives, from a mobility management node, a transmission-path control signal for changing a route of only part of a data packet flow that pertains to a mobile terminal and is originally relayed through the access GW and a first mobility anchor. In response to receiving the transmission-path control signal, the access GW establishes a logical transmission path with a second mobility anchor for transferring the part of the data packet flow, and transfers the part of the packet flow to the second mobility anchor and also transfers a remaining part of the packet flow to the first mobility anchor by distinguishing a data packet received from the mobile terminal.

A method for facilitating communication in a mobile communication system in which address-delegating entities are involved, wherein mobile nodes attaching to the communication system get assigned an address or address prefix, wherein the address or address prefix assignment is delegated from an entity being associated with mobility management&#x2014;mobility entity&#x2014;to some other configuration component (), is characterized in that the configuration component (), upon being delegated by a mobility entity to assign a mobile node an address or address prefix, stores information about the delegating mobility entity. Furthermore, a corresponding mobile communication system with discovery functionality of address-delegating entities is disclosed.

Method for facilitating communication in a mobile communication system and mobile communication system

A method for operating a mobile network, especially for charging traffic within the mobile network, wherein monitoring of chargeable events regarding traffic from and/or to a mobile node will be performed by a Charging Function for collecting charging data. The method is characterized in that a Charging Function's sub-function for monitoring of chargeable events on a data flow level or IP (Internet Protocol) flow level will be additionally located&#x2014;as an additional sub-function D-CEMF (Delegated Chargeable Event Monitoring Function)&#x2014;on at least one further network element, which is different from the Charging Function and which allows to traverse breakout and/or localized traffic of the mobile node, so that the Charging Function and the further network element each are including such a sub-function, and that the additional sub-function D-CEMF will report information regarding monitored chargeable events to the Charging Function. A mobile network for carrying out the method is described.

Method for operating a mobile network for charging traffic and corresponding mobile network

A radio network allows a flexible distribution of data flows between a mobile station and a mobility anchor of the network over different interfaces. Data flows are routed between at least one mobile station and a mobility anchor of the network. The mobile station can connect to the mobility anchor using multiple network interfaces simultaneously, the radio network including an application function capable of processing and/or analyzing information about routing policies contained in a signalling received from a mobile station, which is able to push or signal the processed and/or analyzed information from the application function to an entity that can enforce routing policies to forward the data flows to one or more selected interfaces and which is able to signal routing policies received from the network to the mobile station. Further, an according method for operating a radio network, especially for routing data flows within the network, is disclosed.

Radio network and a method for operating a radio network

A method for controlling proxy binding of a mobile node in a network that supports network-based mobility management, wherein the mobile node includes at least one network interface that is employed for attaching to the network via an access router, wherein a mobile node's binding for a network interface is initiated by a binding request, is characterized in that the mobile node's binding for a new network interface is qualified as a preliminary binding, which is not employed for downlink data transmission, and that the mobile node's preliminary binding is activated, after the mobile node's new network interface has been configured.

Method for controlling proxy binding of a mobile node

A method for controlling the communication with mobile stations within a network, preferably a WLAN (Wireless Local Area Network) according to the IEEE802.11 standard, wherein the network comprises at least one access point through which the stations are associated with the network and wherein the stations can enter a power save mode is&#x2014;with regard to a flexible utilization especially in large networks and with regard to a reduction of the required complexity of the access point of the network&#x2014;characterized in that at least one functional entity is implemented in the network by which at least one part of the functionality required in power save mode is controlled.

Method for controlling communication with mobile stations within a network by implementing at least one functional entity in the network

A method for controlling the communication with mobile stations in a network, preferably in a WLAN (Wireless Local Area Network) according to the IEEE 802.11 standard, wherein the network comprises access points through which the mobile stations are associated with the network and wherein the mobile stations can be set to power save mode is&#x2014;with respect to an especially energy-efficient operation of the mobile station-designed in such a way that paging signaling is performed in order to locate a mobile station.

Growing community of inventors

Heidelberg, Germany

Marco Liebsch