Patents Assigned to Telefonica S.A.
  • Patent number: 9742524
    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
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 22, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Patent number: 9736111
    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
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: August 15, 2017
    Assignee: Telefonica, S.A.
    Inventors: Rafael Alejandro Lopez Da Silva, Pedro Andrés Aranda Gutiérrez, Francisco Javier Ramón Salguero, Gerardo García De Blas
  • Patent number: 9735866
    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.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: August 15, 2017
    Assignee: Telefonica, S.A.
    Inventors: Manuel Sanchez Yanguela, Rafael Canto Palancar
  • Patent number: 9693326
    Abstract: The method comprising at least one phase synchronized cellular base station having at least one transmit antenna for transmitting a signal to a at least one non-phase synchronized cellular base station, where it comprises transmitting by said at least one transmit antenna of said phased-synchronized cellular base station a beacon signal to said at least one non-phase synchronized cellular base station, included as part of said transmitted signal, said beacon signal comprising two orthogonal length-8 Walsh-Hadamard sequences to be broadcasted by said at least one phase synchronized cellular base station in order to provide said phase synchronization.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: June 27, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Publication number: 20170142158
    Abstract: A method, a device and computer program products for protecting privacy of users from web-trackers The method comprising: capturing and removing a public unique identifier set by a Website (300) in a computing device (100D) of a user (100); monitoring, during a first time-period, web-requests the user (100) makes to obtain a web-behavioral profile of the user (300), and storing the obtained web-behavioral profile as a first vector; tracking, during a second time-period, the web-requests to examine the effect each web-request has on assisting the de-anonymization of the user (100), obtaining a second vector; classifying, the obtained second vector taking into account a computed similarity score parameter; creating and mapping, a corresponding private unique identifier for said captured public identifier; and executing, based on said mapping between the private and the public unique identifiers, an intervention algorithm for said web-tracker, that considers a configured intervention policy.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 18, 2017
    Applicant: Telefonica, S.A.
    Inventors: Nikolaos LAOUTARIS, Jeremy BLACKBURN
  • Patent number: 9654261
    Abstract: A method involving coordinating resources between a victim and an aggressor base station in massive MIMO systems, whereby only those specific beams involved in the interference scenario are coordinated in time and/or frequency domains without affecting other resources committed to other users as well as legacy users. Also disclosed is a system and computer program configured to implement the method.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 16, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Publication number: 20170117996
    Abstract: Method to perform joint scheduling in the downlink or in the uplink of a centralized OFDM radio access network for a plurality of users considering time, frequency and space domains, scheduler device thereof and computer program products. The method to be applied in the downlink or in the uplink of a centralized radio access network based on OFDM, whereby a set of remote radio heads of a set of remote units are connected to a central unit, that performs all (or part of) the radio-related processing tasks, wherein the scheduling exploit CoMP, NOMA and RF conditions and resource blanking techniques.
    Type: Application
    Filed: October 26, 2016
    Publication date: April 27, 2017
    Applicant: Telefonica, S.A.
    Inventor: Javier LORCA HERNANDO
  • Patent number: 9603142
    Abstract: The method comprises a LTE cellular base station reporting radio resources usage information about its resource assignment in a current LTE frame emitted or to be emitted thereby, regarding slot usage for at least the slots of the downlink subframes of the current LTE frame, and generally also regarding the slots of subsequent downlink subframes and of also regarding uplink subframes. The uses of the method are for interference reduction and for energy optimization.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: March 21, 2017
    Assignee: Telefonica, S.A.
    Inventor: Luis Cucala Garcia
  • Patent number: 9602306
    Abstract: The method comprising: receiving, a controller (106), traffic packets from a device, each one of said traffic packets including a VLAN tag indicating a destination of a second device; analyzing, by a first monitoring unit (101) during a period of time, the bytes content of said received packets and reporting said analysis to said controller (106); receiving, said controller (106), said plurality of different subcarriers to be used for said sending; adding, by a tag unit (102), an embedded S-VLAN tag to said analyzed packets identifying to which subcarrier and to which sliceable bandwidth variable transponder (105) each tagged traffic packets per destination is going to be sent; sending said S-VLAN tagged traffic packets to a switch (104), the latter forwarding them to a given port of said identified sliceable bandwidth variable transponder (105) for sending them via different sub-carriers to its corresponding destination, said plurality of different sub-carriers following a same or different path.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: March 21, 2017
    Assignee: Telefonica, S.A.
    Inventors: Victor Lopez Alvarez, Juan Pedro Fernandez-Palacios, Oscar Gonzalez-De Dios
  • Patent number: 9602323
    Abstract: A Method for increasing coverage and robustness against frequency offsets in wireless networks, user device and computer program products In the method, a user device (171) that wirelessly communicates with a base station (172) through a wireless network employing a Single Carrier-Frequency Division Multiple Access, SC-FDMA, comprises: applying a number of calculated repetitions of a block of complex information symbols prior to a SC-FDMA modulator (176), said number of repetitions being an integer submultiple of a number of subcarriers scheduled for uplink transmission according to the expression: NscUL=L×M with L and M integers; and applying, when mapping to scheduled resources in the SC-FDMA modulator (176), a frequency shift equal to a subcarrier width multiplied by one half of said number of repetitions.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 21, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Patent number: 9565157
    Abstract: Comprises identifying an end point or content server that can best serve an end user that sent a DNS request to an ISP DNS resolver, given a geographically distributed network of end points. In particular, the method further comprises using the end points themselves and a tracker to identify and notify to the end user the IP addresses of the least-loaded and closest end points that can best serve the content request.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: February 7, 2017
    Assignee: Telefonica, S.A.
    Inventors: Parminder Chhabra, Armando Antonio Garcia Mendoza, Carmelo Acosta Ojeda, Pablo Rodríguez Rodriguez, Alvaro Saurín Parra
  • Patent number: 9565697
    Abstract: The method includes: performing a packet scheduling for a plurality of user terminals (UEs) based on information regarding QoS classes, the information regarding QoS classes is included in QoS class identifiers received from an Evolved Packet Core providing communication services to the user terminals. The method further includes receiving channel quality indicators from the plurality of user terminals and performing the scheduling also on the basis of the received channel quality indicators. The system of the invention is arranged to implement the method of the invention.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: February 7, 2017
    Assignee: Telefonica, S.A.
    Inventors: Pablo Ameigeiras Gutierrez, Jorge Navarro Ortiz, Juan Manuel Lopez Soler, Raquel Garcia Perez, Quiliano Perez Tarrero, Javier Lorca Hernando
  • Patent number: 9549347
    Abstract: A method, system and computer program for inter-working between different wireless technologies. The method including connecting a base station wirelessly connected to a mobile terminal, both complying with standardized wireless radio access technology, with a MME and/or a SGW of the EPC of the 3GPP standard by a NAS function included in the base station. The NAS function collecting a MAC address of the mobile terminal and generating an IMSI identity based on the collecting; providing the generated IMSI to the MME and storing it together with a set of parameters and algorithms; performing, with the MME or with a HSS an authentication and ciphering procedure of the mobile terminal using the stored set of parameters and algorithms, and performing the termination of the NAS protocol messages with the MME for management procedures related with the mobile terminal, the wireless radio access technology and the 3GPP standard being different technologies.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: January 17, 2017
    Assignee: Telefonica, S.A.
    Inventors: Luis Cucala Garcia, Wsewolod Warzanskyj Garcia
  • Patent number: 9549409
    Abstract: The method comprising at least one user device provided with at least four antennas, wirelessly connected to a serving base station having between one and four transmit antennas and suffering interferences from at least one interfering base station having between one and four transmit antennas, establishing a data transmission link among a plurality of antennas, and: applying a time shift delay between said serving base station and said at least one interfering base station in order to avoid collision between Cell Reference Signals (CRS) of serving and interfering base stations when said data transmission is established; and introducing changes on the physical layer for PDSCH transmission and reception aimed at achieving inter-layer interference cancellation, said changes introduced comprising the introduction of a pattern of transmission gaps at symbols (l) and subcarrier indices (k) of interfering cell's CRS signals, which will be exploited by said at least one user device for effective interference canc
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: January 17, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Patent number: 9537512
    Abstract: The method comprising passing, a base station or a user terminal, information comprising data signals and encoding, a first and a second turbo encoders, said received data signals, generating two different turbo code blocks comprising a set of systematic and parity bits. Where, in order to enhance detection the two different turbo code blocks are simultaneously transmitted through a wireless OFDM system and wherein the data signals to be encoded by said second turbo encoder are interleaved prior encoding by an external bit interleaver. The system of the invention is arranged to implement the method of the invention.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: January 3, 2017
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Patent number: 9510240
    Abstract: The method comprising at least one wireless user terminal, UE, connected through a wireless network to a serving base station and a plurality of network cells, each one comprising a base station, said at least one wireless UE: estimating the cell loads of the serving base station and of the plurality of network cells by analysing a downlink air interface load; providing to said wireless network, information about the actual cell load estimation of said plurality of cells, and performing a network cell selection based on said estimated cell loads, wherein said cell selection is performed without any exchange of cell load between said plurality of network cells.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: November 29, 2016
    Assignee: Telefonica, S.A.
    Inventor: Javier Lorca Hernando
  • Patent number: 9485690
    Abstract: The system comprises a plurality of radio access nodes, or cells, each of said cells providing a coverage area to a plurality of user equipments, characterized in that each of said radio access nodes is splitted into: a common processing section (1) which performs a main processing stage; and a plurality of remote transceiving sections (2a, 2b, 2c), each performing a local processing stage complementing said main processing stage, being operatively connected to said common processing section, and constituting a sub-cell providing a coverage sub-area, wherein said coverage area is distributed into said coverage sub-areas. The method is arranged for carrying out said splitting of radio access nodes.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: November 1, 2016
    Assignee: Telefonica, S.A.
    Inventors: Luis Cucala Garcia, Primitivo Matas Sanz, Quiliano Perez Tarrero, Francisco Javier Lorca Hernando
  • Publication number: 20160308709
    Abstract: A system implementing a method for determining QoS degradations comprises: receiving alarms (a) from application layer or from network nodes of a MPLS network, including Passive Traffic Analyzer, Physical Layer Monitoring and MPLS OAM nodes, depending on the alarm, the system requests testing (d) for location and the network nodes answer back with location (e), once the fault is located, the system starts traffic restoration (h) via MPLS Signaling and receives the result (i), the system may need to consult the System Database, optionally query (b)—reply (c) step before requesting location, while query (f)—response (g) step is mandatory before restoration (h), once traffic restored, further testing by the network nodes and/or the application layer are triggered (j) by the system to ensure the correct overall QoS within the new network situation, a loop (i) of further restoration can be triggered by the system until a global stable non-degraded behavior is declared.
    Type: Application
    Filed: December 26, 2013
    Publication date: October 20, 2016
    Applicant: Telefonica, S.A
    Inventors: Juan Pedro Fernandez-Palacios Gimenez, Juan Rodriguez Martinez
  • Publication number: 20160294698
    Abstract: The method comprises identifying and classifying, by a classification unit (102), received data packets flows between fixed bit rate data packets flows (FB) and variable bit rate data packets flows (VB); sending the identified and classified fixed bit rate data packets flows (FB) to a pacer unit (103) spacing the transmission of the fixed bit rate data packets flows (FB) towards an egress port of the transport node (100); and sending the configuration parameters relating to the variable bit rate data packets flows (VB) to a virtual queue unit (104), said virtual queue unit (104) including a processor running an algorithm to activate one or more congestion correction procedures, wherein in case the result obtained by said algorithm being over, or equal, at least one threshold activating a corresponding congestion correction procedure.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Applicant: Telefonica, S.A.
    Inventor: Ignacio BERBERANA FERNANDEZ-MURIAS
  • Patent number: 9450738
    Abstract: A method to optimize almost blank subframe usage in a wireless network including generating, an interfering base station, in order to minimize interference caused to a serving base station, an almost blank subframe pattern and sending the latter to the serving base station. The serving base station generating a set of preferred almost blank subframes, from said received almost blank subframe pattern, that their knows will be of use for providing a wireless connectivity to a user terminal, and sending the preferred almost blank subframes ordered by a priority of usage to said interfering base station. And the interfering base station, using, in the case of requiring the use of additional subframes for serving its own user terminals, the almost blank subframes indicated as low priority in said received set of preferred almost blank subframes from the serving base station.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: September 20, 2016
    Assignee: Telefonica, S.A.
    Inventor: Luis Cucala Garcia