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公开(公告)号：US11671150B2
公开(公告)日：2023-06-06
申请号：US17760628
申请日：2020-09-08
申请人： TELEFONICA, S.A.
IPC分类号： H04L1/02 , H04B7/0452 , H04B7/06 , H04L25/03
CPC分类号： H04B7/0452 , H04B7/0686 , H04L25/03898
摘要： A method and system for optimizing the performance of spatial multiplexing techniques in MU-MIMO wireless systems comprising subsectors where the presence of significant correlation between antenna elements can impair the performance of MU-MIMO techniques. The proposed solution ensures optimum selection of a specific combination of transmit antenna elements and receive antenna elements that maximizes MU-MIMO performance.
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公开(公告)号：US20230049479A1
公开(公告)日：2023-02-16
申请号：US17788999
申请日：2019-12-26
申请人： Telefonica, S.A.
发明人： Alberto MOZO VELASCO , Sandra GOMEZ CANAVAL , Antonio PASTOR PERALES , Diego R. LOPEZ , Edgar TALAVERA MUNOZ
IPC分类号： G06N3/08
摘要： Proposed are a computer-implemented method for accelerating convergence in the training of generative adversarial networks (GAN) to generate synthetic network traffic, and computer programs of same. The method allows the GAN network to ensure that the training converges in a limited time period less than the standard training period of existing GAN networks. The method allows results to be obtained in different use scenarios related to the generation and processing of network traffic data according to objectives such as the creations of arbitrary amounts of simulated data (a) with characteristics (statistics) similar to real datasets obtained from real network traffic, but (b) without including any part of any real dataset; diversity in the type of data to be created: IP traffic, network attacks, etc.; and the detection of changes in the network traffic patterns analysed and generated.
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公开(公告)号：US11128352B2
公开(公告)日：2021-09-21
申请号：US16597641
申请日：2019-10-09
申请人： Telefonica, S.A.
IPC分类号： H04B7/0408 , H04B7/0413 , H04B7/06 , H04W28/06 , H04W72/04 , H04W72/12
摘要： Method and system to dynamically associate spatial layers to beams in a FWA network operating in the millimeter-wave frequency range. A base station and a CPE are willing to wirelessly transmit and receive data through a wireless channel of the FWA network, the base station having beamforming capabilities henceforth generating multiple wireless beams. The base station performs all baseband wireless functions related for creating, keeping and managing the connections between the base station and the CPE at baseband level, wherein information is handled in the form of up to M spatial layer signals, and with no built-in capabilities for creation, detection or management of the beams. The base station also performs all necessary RF functions at millimeter-wave frequencies, including beamforming and conversion from complex baseband signals to RF signals and vice versa, and also couples the RF signals to the wireless channel.
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公开(公告)号：US10284280B2
公开(公告)日：2019-05-07
申请号：US15810588
申请日：2017-11-13
申请人： Telefonica, S.A.
IPC分类号： H04B7/08 , H04B7/0408 , H04B7/0413 , H04L5/00 , H04B7/0452 , H04L27/26
摘要： A system, method and device to overcome the effects of mobility in OFDM wireless cellular networks. Individual beams are isolated and Doppler impairments are compensated so the constituent beams can reach the users in DL with ideally no Doppler impairments. Similarly in UL the signals corresponding to the different spatial beams are detected and their Doppler impairments compensated.
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公开(公告)号：US20190044672A1
公开(公告)日：2019-02-07
申请号：US16052835
申请日：2018-08-02
申请人： TELEFONICA, S.A.
摘要： A method to provide robustness against noise and interference in wireless communications, a transmitter and computer program products, involving sending to a receiver (13), through a wireless channel (12), information using a constant-envelope waveform with complex baseband representation of the form s[n]=Ac exp{jϕ[n]}. The phase ϕ[n] following the expression ( φ [ n ] - φ [ n - 1 ] ) = 2 π m · ∑ k = k 0 + 1 k 0 + N a , F M + - 1 x [ k ] exp ( j 2 π kn N ) , and the wireless channel has an Additive White Gaussian Noise component and flat-fading conditions, wherein the transmitter (110) calculates a FFT length, N, and a number of active positive subcarriers, Na,FM+, needed in order to have a given improvement in the signal to noise ratio at the active positive subcarriers of the instantaneous frequency spectrum containing the information; calculates a cutoff subcarrier k0 needed to overcome Doppler, phase noise and carrier frequency offset impairments at the receiver side, and generates a complex baseband signal waveform of the form s[n]=Ac exp{jϕ[n]} carrying information with the FFT length, number of active positive subcarriers and cutoff subcarrier.
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公开(公告)号：US09806944B2
公开(公告)日：2017-10-31
申请号：US14940429
申请日：2015-11-13
申请人： Telefonica, S.A.
IPC分类号： H04L12/24 , H04L12/721 , H04L29/12 , H04L29/06 , H04L12/715 , H04L12/717
CPC分类号： H04L41/0806 , H04L41/0803 , H04L41/0813 , H04L41/0816 , H04L45/04 , H04L45/42 , H04L45/44 , H04L45/64 , H04L45/70 , H04L61/1511 , H04L61/1541 , H04L63/0263
摘要： 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.
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公开(公告)号：US09774542B2
公开(公告)日：2017-09-26
申请号：US14652206
申请日：2013-12-19
申请人： Telefonica, S.A.
发明人： Francisco Javier Ramón Salguero , Pedro Andrés Aranda Gutiérrez , Alfonso Tierno Sepúlveda , Rafael Alejandro Lopez Da Silva
IPC分类号： H04L29/08 , H04L12/911 , H04L12/24 , G06F9/445 , G06F9/50
CPC分类号： H04L47/783 , G06F8/61 , G06F9/5044 , G06F9/5066 , H04L41/145 , H04L41/5041 , H04L41/5096 , H04L67/16
摘要： 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.
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8.发明授权Method and a system implementing a turbo-diversity scheme for wireless OFDM systems 有权方法和实现用于无线OFDM系统的turbo分集方案的系统公开(公告)号：US09537512B2
公开(公告)日：2017-01-03
申请号：US14415259
申请日：2013-07-16
申请人： Telefonica, S.A.
CPC分类号： H03M13/2771 , H03M13/258 , H03M13/2792 , H04B7/02 , H04L1/0066 , H04L1/0071 , H04L1/0606 , H04L1/0631 , H04L1/065 , H04L1/0668 , H04L5/0007 , H04L5/001
摘要： 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.
摘要翻译： 本发明的系统被设置为实现本发明的方法。
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9.发明授权Method for performing multiple access in wireless OFDM cellular systems over multipath wireless channels considering both space and frequency domains, base station and computer programs thereof 有权考虑到空间和频域，基站和其计算机程序，在多径无线信道上在无线OFDM蜂窝系统中执行多重接入的方法公开(公告)号：US09425870B2
公开(公告)日：2016-08-23
申请号：US14978623
申请日：2015-12-22
申请人： Telefonica, S.A.
CPC分类号： H04B7/0413 , H01Q21/061 , H04B7/0408 , H04B7/0452 , H04B7/0456 , H04B7/0617 , H04B7/0626 , H04B7/0697 , H04L5/0003 , H04L5/0007 , H04L5/0053 , H04L5/0094
摘要： Methods, a base station and computer programs for performing multiple access in wireless OFDM cellular systems over multipath wireless channels considering both space and frequency domains,The base station 100 comprises a large number of antennas 103 in the form of a two-dimensional array and transmits a given number of signals to a number of users 106, so that each one receives its intended signal (or set of intended signals) without interference to/from the other users 106. The base station 100 includes a scheduler in space-time-frequency dimensions 101 as well as an orthogonal space-frequency processing technique 102 for addressing the users 106. The cellular scenario is assumed where the wireless channel 105 presents significant multipath, thereby resulting in multiple signal components being received by each user 106. Orthogonality of the beams is achieved upon transmission by properly discretizing the spatial domain, while inter-user interference is avoided by exciting only those beams that result in multipath components received by one single user 106.
摘要翻译： 方法，基站和计算机程序，用于在无线OFDM蜂窝系统中通过考虑空间和频域的多径无线信道执行多址接入。基站100包括二维阵列形式的大量天线103和发射 向多个用户106发送给定数量的信号，使得每个人在不干扰其他用户106的情况下接收其预期信号（或预期信号集合）。基站100包括空时频率调度器 尺寸101以及用于寻址用户106的正交空频处理技术102.假设无线信道105呈现显着多路径的蜂窝场景，从而导致每个用户106接收多个信号分量。波束的正交性 通过适当地离散空间域的传播来实现，而通过仅激发tho来避免用户间干扰 e波束，其导致由单个用户106接收的多径分量。
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公开(公告)号：US09305264B2
公开(公告)日：2016-04-05
申请号：US14108656
申请日：2013-12-17
申请人： Xavier Anguera Miró
发明人： Xavier Anguera Miró
摘要： Method, system and computer program for determining matching between two time series. They use an improved algorithm partially based in Dynamic Time Warping and Information Retrieval techniques, but solving the problems (as computational complexity, memory requirements . . . ) observed in these matching techniques.
摘要翻译： 方法，系统和计算机程序，用于确定两个时间序列之间的匹配。 他们使用部分基于动态时间扭曲和信息检索技术的改进算法，但解决了在这些匹配技术中观察到的问题（作为计算复杂性，内存要求...）。
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