Abstract: Described herein is a method and system for hierarchical wireless video with network coding which limits encryption operations to a critical set of network coding coefficients in combination with multi-resolution video coding. Such a method and system achieves hierarchical fidelity levels, robustness against wireless packet loss and efficient security by exploiting the algebraic structure of network coding.

Abstract: A system and method for reducing interferences in OFDM networks comprising generating (31) a set of pseudo-random coordination patterns {kin; i=0, . . . , N?1; n=0, . . . , M?1}, wherein kin are integers from 0 to M?1, M is the number of calls in a coordination cluster, N is the number of subcarriers, n is a cell identifier within the coordination cluster, and kin?kim?n?m, i=0, . . . , N?1; generating a randomizing pattern common to all cells within the coordination cluster, comprising an invertible transformation in the time domain of the complex symbols for each subcarrier; spreading (32) the complex symbols over M TTIs: b ? [ i , m ] = M ? ? m = 0 T - 1 ? ? a ? [ i , n ] ? exp ? [ - j2? ? ( Mn + k i ) · m / ( M · T ) ] . wherein a[i,n] denotes the symbols prior to the spreading (32), b[i,m] denotes the symbols after the spreading (32), 0?ki?M?1, i=0, . . . , N?1, m=0, . . .

Abstract: Methods and systems to perform textual queries on voice communications. The system has an index service for storing a audio content data sets for voice communications. The audio content data sets include at least three audio content data sets for each voice communication. The three audio content data sets include a first audio content data set generated using a speech-to-text conversion technique, a second audio content data set generated using a phoneme lattice technique, and a third audio content data set generated using a keyword identification technique. The system includes a search engine configured to: receive search criteria from a user, the search criteria having at least one keyword; search each of the first, second and third audio content data sets for at least a portion of the plurality of voice communications to identify voice communications matching the search criteria; and combine the voice communications identified by each search to produce a combined list of identified voice communications.

Abstract: The present invention refers to a method for anonymization by transmitting an event data set from at least one data supplying entity supplying the event data set to at least one data aggregating entity aggregating the event data set wherein the data set includes at least one identifier identifying at least one user of the data supplying entity, the method comprises the steps of performing a non-reversible basic encryption of the at least one identifier using an encryption mechanism with a certain lifetime, iteratively performing an additional encryption of said basic encrypted identifier for n-times with n equal or greater than 1 resulting in an additional encrypted identifier, wherein the additional encryption comprises the steps of adding a random component to said encrypted identifier and encrypting the output using asymmetric encryption with a public key, wherein each iteration uses a random component with a lifetime shorter than the lifetime of the certain lifetime according to step a and than the lifeti

Abstract: A system, method and device for error detection/estimation in OFDM communications systems is proposed. The disclosed mechanism allows an efficient error prediction in a received data block (e.g. a packet) without using error detection codes that may impair spectral efficiency (due to the overhead) especially when very small size packets are used. In order to do that, it generates a decision variable with the aim to check whether a received block has errors or not, without resorting to the use of error-detection codes.

Abstract: The computer implemented method comprising controlling the access to different resources and actions defined for a user by a first server, reducing the exposure time at which such operations are available, establishing a dual channel verification through the use of a second server and reinforcing an authentication factor mechanism by including a biometric identity verification of biometric information of the user.

Abstract: A computer implemented method, system and computer programs for assessing the behavioral performance of a user. The method includes a) receiving data regarding behavioral information of a user and relating to a first or a second period of time; b) obtaining a user typical behavioral model and a user temporary behavioral model and c) comparing them providing a user behavior deviation; d) selecting a group of individuals for a comparison with the user; e) performing for the individuals steps a) to c) in the same first and second periods of time, and processing the data of the individuals providing a group typical behavioral model (RGR1), a group temporary behavioral model (RGT1) and a group behavioral deviation; f) performing a comparison between the user deviation and the user temporary model with the group deviation an the group temporary model, and using the result to assess the behavioral performance of the user.

Abstract: A method to generate a wireless waveform for use in a wireless communication system, a wireless communication system and computer program product thereof The method comprises the generation of a waveform for application in the wireless communication system characterized by significant phase noise, Doppler spread, multipath, frequency instability, and/or low power efficiency by at the transmitter side: creating a discrete-time instantaneous frequency signal {tilde over (f)}[n]; appending a cyclic prefix with length LCP to the beginning of the discrete-time instantaneous frequency signal {tilde over (f)}[n]; constructing a discrete-time unwrapped instantaneous phase ?[n]; constructing a discrete-time complex baseband signal, and appending at the beginning a Constant Amplitude Zero Autocorrelation, CAZAC, signal of length LCP for multipath detection; and passing the constructed discrete-time complex baseband signal through a digital-to-analog, DAC, converter to yield the continuous-time radio frequency signal s(

Abstract: A computer implemented method and computer program products to prevent attacks against authorization systems The computer implemented method comprising controlling the access to different resources and actions defined for a user by a first server, reducing the exposure time at which such operations are available and establishing a dual channel verification through the use of a second server. The computer programs implement the method.

Abstract: The method comprising: performing a communication call between a first user (B) having a mobile device (H) with a communication application (D) installed therein which is connected to a VoIP communication service (F) through a communication network with a second user (A) via said communication service (F); and computing, based on information extracted from the communication call, by means of executing an algorithm running in a processor, a quality indicator descriptive of technical conditions of said communication network used for performing the communication call, wherein said information is extracted from the communication call by the communication application (D) or by the communication service (F) and includes an identifier of the communication network used, or location information of the mobile device (H) during the communication call, and quality parameters related to the communication call.

Abstract: A network controller and a method for automatically define forwarding rules to configure a computer networking device, The network controller (100) is connected to a sub-network (A) of a communication network and comprises: a controller manager (101) that receives a request for a given service, defines forwarding rules related to said service and installs the defined forwarding rules into a computer networking device (120a) in order to configure it for said given service; a deciding module (102) configured to communicate with the controller manager (101) and configured to interact with a DNS server (150) to receive a determined resolution for a DNS request of said request for said given service, and with a database (300) to retrieve information supplementary for the DNS request, in order to assist the controller manager (101) in performing the defining of the forwarding rules; and a plurality of interfaces (SA, SB, SD) for allowing the communication between the different elements.

Abstract: The method comprising, in a network based on a chain of individual Service Functions, SFs, that are composed to implement Network Services, NSs: assigning, at an ingress node of a network architecture, to at least one data packet received by said ingress node from the network, a unique cryptographic tag; processing said assigned unique cryptographic tag using a cryptographic function specific to each Service Function, SF; and verifying, at a given point of the network architecture, said processed unique cryptographic tag by applying a cryptographic verification function composed by the inverse functions of the cryptographic functions associated to the SFs traversed by the at least one data packet.

Abstract: A system and method for managing subscriber mobile devices comprising: a home network (400) of a first mobile network operator (MNO1), in which data associated with at least one physical SIM of a subscriber device with an embedded SIM card (eUICC) is obtained, and a destination network (300) of a second mobile network operator (MNO2) which the device travels to, obtaining static data and dynamic data associated with at least one virtual SIM (503, 603) of the device. The dynamic data comprise a subscriber authentication key (Ki) and is obtained from a SIM provider platform (500, 600) on which the destination network (300) relies. The static data comprise IMSI/MSISDN identities and is stored in a pool (202) of the destination network (300). For a given virtual SIM, it is checked whether there is an association in a mapping table (106) of the first mobile network operator (MNO1) between the static data from the pool (202) and the physical SIM data from the home network (400).

Abstract: A system and method are provided for reducing the overhead caused by the presence of the cyclic prefix while enabling inter-carrier interference (ICI) and inter-symbol interference (ISI) cancellation in an Orthogonal Frequency Division Multiplexing (OFDM) network that includes an OFDM transmitter and an OFDM receiver.

Abstract: A system and method are provided for assisting user devices in performing OFDMA downlink interference cancellation, in which an interfering base station transmits a downlink signal in a first slot and a second slot, both slots including cell reference signals (CRSs) for physical channel estimation, the CRS of the second slot is modified to indicate encoded values of parameters characterizing the physical channel according to an encoding procedure, the slots are received by a served user device that detects the physical channel parameters carried by dedicated control signalling and encodes them by the encoding procedure, an unchanged CRS is reconstructed, and the slots are received by an interfered user device obtaining the encoded values and comparing to parameter patterns indicating absence of modifications in the CRSs, wherein if the encoded values are different from the patterns, the interfered user device decodes them to perform interference cancellation of the downlink signal.

Abstract: The method comprises mapping software-based network functions to hardware resources included in a hardware resource pool, wherein the mapping is performed dynamically on unallocated resources of the hardware resource pool and based on at least the next information: specific hardware constraints for the supporting of each of said software-based network functions; network requirements of at least one defined networking service design for a service making use of said hardware resource pool and of at least part of said software-based network functions; and a hardware description of the hardware resources included in the hardware resource pool. The system is configured for implementing the method of the invention. The computer program product is adapted to perform the method of the invention.

Abstract: A method for performing virtualization of a radio access technology (RAT) over Orthogonal Frequency-Division Multiple Access (OFDMA) wireless networks is provided. The method includes splitting OFDMA time-frequency resources into non-overlapping regions including a virtualization region including a part of a spectrum and the OFDMA symbols that are reserved for virtualization of the RAT; reserving resource elements of the OFDMA time-frequency resources in the virtualization region, for insertion of downlink reference signals including complex sequences known by a receiver to perform downlink channel estimation with a specified separation between signals in time and frequency domains; inserting training or pilot signals along the OFDMA time-frequency resources of the virtualization region; and mapping complex baseband symbols corresponding to information from the RAT into the OFDMA time-frequency resources of the virtualization region.

Abstract: The method comprising: applying, by a transmitter, a Forward Error Correction to an information block to be sent to a receiver and modulating said information block prior to its transmission, wherein the transmitter has knowledge of a channel frequency response seen by the receiver and the applying and modulating are performed at a variable-rate, at the transmitter side, by: transforming the information block into a number of smaller packets denoted as codeblocks fitting the input sizes accepted by the Forward Error Correction; selecting, a set of modulation and coding schemes to be independently applied to each of the codeblocks; including, information about the selected set of modulation and coding schemes within part of physical resources devoted to user data by reserving specific subcarriers and OFDM symbols; and mapping, said information within physical resources devoted to user data and not reserved for said selected set of modulation and coding schemes, first in order of ascending OFDM symbols and then

Abstract: The at least one distributed virtual CPE comprising at least one IP Edge node, at least one Carrier Grade NAT node, at least one User Configuration Server and at least one Line Configuration Server, the method creating said at least one distributed virtual CPE upon the reception of traffic from a home in the access line corresponding to said home; modifying said at least one distributed virtual CPE upon a customer request; removing said at least one distributed virtual CPE, upon a traffic inactivity timeout detected in said access line or upon an administrative command; and associating a line identifier and a customer identifier to said at least one distributed virtual CPE, wherein said association, termed vCPE context, is known partially or totally by the at least one IP Edge node, the at least one Carrier Grade NAT, the at least one User Configuration Server and the at least one Line Configuration Server, and is kept active during the whole life cycle of said distributed virtual CPE from the creation to the

Abstract: The present invention describes a method, system and device for supervising a set of optical fibers of an Optical Network (detecting and locating the failures in deployed optical fibers) which solve some of the problems found in prior art techniques The embodiments of the present invention suggest an innovative approach, which allows to accurately and unambiguously detect and locate failures even in complex point to multipoint optical fiber networks.