Telefonaktiebolaget Lm Ericsson (publ)

Jesus-Javier Arauz-Rosado

Stephen Terrill

Hubert Przybysz

Bo Åström

Anders Ryde

Fredrik Alriksson

Germán Blanco Blanco

Javier Perez Fernandez

Stefan Berg

Alberto Casado Martin

Fredrik Airiksson

Francisco Parra-Moyano

David Suarez Fuentes

Methods and apparatus for addressing of Virtual Network Functions, VNFs. A registration controller of a VNF instance controls a transmitter to transmit a registration request to a VNF Service Registry, VNF-SR, the registration request identifying a public address of the VNF instance. A receiver of the VNF-SR receives the registration request and a VNF address determiner determines a VNF address for the VNF instance based on the received registration request. A Database Management System, DBMS, stores the determined VNF address in a memory. An event subscriber of a Virtual Network Function Manager, VNFM, controls a transmitter to transmit a subscription request to the VNF-SR, the subscription request comprising an identifier for a VNF. A receiver of a Virtual Configuration Server, VCS, receives a notification from the VNF-SR when a change has occurred in configuration and/or address data stored in the memory of the VNF-SR and relating to one or more VNF instances. A configuration manager determines a configuration instruction for the one or more VNFs based on the received notification, and controls a transmitter to transmit the configuration instruction to the one or more VNF instances.

Network function virtualization

A distributed data storage system uses a data distribution and location algorithm based on distance functions and hyper-spheres in a multi-dimensional space. The distributed data storage system uses the algorithm to maintain, over time, a balanced distribution across a number of computers interconnected by a network of a varying set of data items. Each data item includes one or more key fields. The system also includes an efficient partial-match and exact-match search across a whole set of data items using as search criteria the values of any or all of the sought data item's key field(s).

Data distribution/retrieval using multi-dimensional index

The present invention proposes a specific handling of tel URIs in an IMS terminating network so as to enable routing of calls using telephone numbers (and not SIP URIs with embedded telephone numbers) as identifiers of the target users of those calls. Specifically, the present invention introduces a conversion module which is located within the IMS terminating network and is capable of converting SIP URIs with embedded telephone numbers into equivalent tel URIs which are then used by a terminating I-CSCF and S-CSCF to query the SLF and/or HSS so that they can route the calls to the target users.

IMS call routing using tel-URIs

According to a first aspect of the present invention there is provided an apparatus configured to classifying user traffic flows carried by a network, each user traffic flow being associated with one of a plurality of users. The apparatus comprises a classification unitfor classifying each user traffic flow into one of a plurality of traffic classes, a pattern generation unitfor generating a user pattern for each user, a grouping unitfor grouping the plurality of users into one or more user groups, and for identifying a user pattern within each user group that is representative of all user patterns within the user group, and an optimized classification unitfor identifying a user associated with a subsequent user traffic flow, determining the user group to which the user belongs, retrieving the representative user pattern of said user group, and using the traffic classes included in the representative user pattern to classify the subsequent user traffic flow.

Traffic classification

The present invention faces the issues of remotely controlling multiple LAN-attachable devices (-) and provides for means and method of controlling the LAN-attachable devices from a CP-terminal () through an IMS network (). Basically, the invention provides for the allocation of unique identifiers to each LAN-attachable device (S-), the exposure of these identifiers in an appropriate entity under control of a SIP network operator (S-), fetching these identifiers from the CP-terminal (S), the submission of control commands from the CP-terminal though the IMS network towards a Remote Gateway (S-), where the LAN-attachable devices are accessible through a home LAN network, and the submission of corresponding control command from the Remote Gateway towards the LAN-attachable devices (S-).

IMS-based discovery and control of remote devices

A controller (GK) of a communication system (SYS) including in each of a plurality of geographically distant zones (ZA, ZB, ZC) a zone-specific controller (GK) and one or more subscriber terminals (EP) comprises a controller characteristics memory (CCM) for storing at least a private network identifier (PNID), a private network configuration memory (PNCM) for storing the private network configuration, a private network configuration determing means (PMDM) for communicating with other controllers (GK) of the communication system to determine the private network configuration and a call router for routing a call setup message received from a subscriber terminal (EP-A) in one zone (ZA) to another subscriber terminal (EP-B) of another zone (ZB). Before setting-up a call or at repeated time intervals the private network configuration including the controllers and subscriber stations in all zones (ZA, ZB, ZC) which belong to the private network identified by the private network identifier (PNID) can be determined and this private network configuration is used for determining the location of the respective controller which serves the called subscriber station (EP-B).

Growing community of inventors

Madrid, Spain

Jesus-Javier Arauz-Rosado