公开(公告)号：US09781714B2

公开(公告)日：2017-10-03

申请号：US14871075

申请日：2015-09-30

Applicant: Telefonica, S.A.

Inventor： Javier Lorca Hernando

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/22 ,  H04B17/345 ,  H04J11/00 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04B17/345 ,  H04J11/005 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/22 ,  H04L5/0023 ,  H04L27/2613

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.

公开(公告)号：US09742535B2

公开(公告)日：2017-08-22

申请号：US14579304

申请日：2014-12-22

Applicant: Telefonica, S.A.

Inventor： Javier Lorca Hernando

IPC: H04L5/00 ,  H04L25/03 ,  H04J11/00

CPC classification number: H04L5/0048 ,  H04J11/00 ,  H04L5/0005 ,  H04L5/0007 ,  H04L25/03006 ,  H04L25/03866

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.

公开(公告)号：US09693326B2

公开(公告)日：2017-06-27

申请号：US14436655

申请日：2013-10-04

Applicant: TELEFONICA, S.A.

Inventor： Javier Lorca Hernando

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04W56/0015 ,  H04J11/0073 ,  H04J11/0076 ,  H04J2011/0096 ,  H04L5/0007 ,  H04W56/0035

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.

公开(公告)号：US20170142158A1

公开(公告)日：2017-05-18

申请号：US14942319

申请日：2015-11-16

Applicant: Telefonica, S.A.

Inventor： Nikolaos LAOUTARIS ,  Jeremy BLACKBURN

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L63/20 ,  H04L63/0281 ,  H04L63/0407 ,  H04L63/10 ,  H04L67/02 ,  H04L67/22 ,  H04L67/306

Abstract: A method, a device and computer program products for protecting privacy of users from web-trackersThe 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.

公开(公告)号：US20170117996A1

公开(公告)日：2017-04-27

申请号：US15334680

申请日：2016-10-26

Applicant: Telefonica, S.A.

Inventor： Javier LORCA HERNANDO

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/12

CPC classification number: H04L5/0035 ,  H04L5/0037 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0075 ,  H04L5/14 ,  H04W72/1231

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.

公开(公告)号：US09602323B2

公开(公告)日：2017-03-21

申请号：US14722815

申请日：2015-05-27

Applicant: Telefonica, S.A.

Inventor： Javier Lorca Hernando

IPC: H04L27/26 ,  H04W4/00

CPC classification number: H04L27/2695 ,  H04L27/2643 ,  H04L27/2657 ,  H04W4/70

Abstract: A Method for increasing coverage and robustness against frequency offsets in wireless networks, user device and computer program productsIn 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.

公开(公告)号：US09565697B2

公开(公告)日：2017-02-07

申请号：US14381459

申请日：2013-02-20

Applicant: Telefonica, S.A.

Inventor： Pablo Ameigeiras Gutierrez ,  Jorge Navarro Ortiz ,  Juan Manuel Lopez Soler ,  Raquel Garcia Perez ,  Quiliano Perez Tarrero ,  Javier Lorca Hernando

IPC: H04W72/12 ,  H04W72/08

CPC classification number: H04W72/1289 ,  H04W72/087 ,  H04W72/1236

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.

Abstract translation: 该方法包括：基于关于QoS等级的信息对多个用户终端（UE）进行分组调度，将关于QoS等级的信息包括在从向用户终端提供通信服务的演进分组核心接收的QoS分类标识符中。 该方法还包括从多个用户终端接收信道质量指示符，并且还基于所接收的信道质量指示符执行​​调度。 本发明的系统被设置为实现本发明的方法。

公开(公告)号：US20170006498A1

公开(公告)日：2017-01-05

申请号：US15108221

申请日：2013-12-27

Applicant: TELEFONICA, S.A.

Inventor： Primitivo Matas Sanz ,  David Florez Rodriguez

IPC: H04W28/08

CPC classification number: H04W28/08 ,  H04W84/18

Abstract: Present invention refers to a method and a system for an automatic traffic offloading in a wireless telecommunication network with both Self Organization Network (SON) and Access Network Discovery and Selection Function (ANDSF) capabilities. According to various embodiments of the invention, a user equipment collects some status information and send said information to a node of the network, where an optimization algorithm is applied and a decision for an offloading through a Wi-Fi access point in range of the UE is taken.

Abstract translation: 本发明涉及一种在具有自组织网络（SON）和接入网络发现与选择功能（ANDSF）能力的无线电信网络中自动流量卸载的方法和系统。 根据本发明的各种实施例，用户设备收集一些状态信息并将所述信息发送到网络的节点，其中应用优化算法，并且通过UE的范围内的Wi-Fi接入点进行卸载的决定 被采取

公开(公告)号：US20160380725A1

公开(公告)日：2016-12-29

申请号：US15195436

申请日：2016-06-28

Applicant: TELEFONICA, S.A.

Inventor： Javier Lorca Hernando

IPC: H04L1/00 ,  G06N7/00 ,  H04L27/26

CPC classification number: H04L1/0057 ,  G06N7/005 ,  H03M13/3738 ,  H03M13/3784 ,  H04L1/0055 ,  H04L1/203 ,  H04L27/2647

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 translation: 提出了OFDM通信系统中用于错误检测/估计的系统，方法和装置。 所公开的机制允许在接收的数据块（例如，分组）中进行有效的误差预测，而不使用可能损害频谱效率（由于开销）的错误检测码，特别是当使用非常小的分组时。 为了做到这一点，它产生一个决策变量，目的是检查接收的块是否有错误，而不诉诸使用错误检测码。

公开(公告)号：US09450738B2

公开(公告)日：2016-09-20

申请号：US14337927

申请日：2014-07-22

Applicant: Telefonica, S.A.

Inventor： Luis Cucala Garcia

IPC: H04L5/00 ,  H04W72/12 ,  H04W92/20 ,  H04W84/04

CPC classification number: H04L5/0073 ,  H04L5/0094 ,  H04W72/1278 ,  H04W84/045 ,  H04W92/20

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.

Abstract translation: 一种在无线网络中优化几乎空白子帧使用的方法，包括生成干扰基站，以便最小化对服务基站造成的干扰，几乎空白的子帧模式，并将其发送到服务基站。 服务基站从所述接收的几乎空白的子帧模式生成一组优选的几乎空白的子帧，它们的知道将用于向用户终端提供无线连接，并且发送优先的几乎空白的子帧 对所述干扰基站的使用。 并且干扰基站在需要使用附加子帧来为其自己的用户终端服务的情况下，使用在所述接收到的来自服务基站的优选几乎空白的子帧集合中指示为低优先级的几乎空白的子帧。