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    Method to provide increased robustness against noise and interference in wireless communications, a transmitter and computer program products thereof
    1.
    发明授权
    Method to provide increased robustness against noise and interference in wireless communications, a transmitter and computer program products thereof 有权

    公开(公告)号：US10778499B2

    公开(公告)日：2020-09-15

    申请号：US16052835

    申请日：2018-08-02

    Applicant: TELEFONICA, S.A.

    Inventor： Javier Lorca Hernando ,  Carlos González Sánchez

    IPC: H04L27/36 ,  H04L27/26

    Abstract: 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.

    COMPUTER IMPLEMENTED METHOD, A SYSTEM AND COMPUTER PROGRAMS FOR CONGESTION CONTROL IN A TRANSPORT NODE OF A COMMUNICATION NETWORK
    6.
    发明申请
    COMPUTER IMPLEMENTED METHOD, A SYSTEM AND COMPUTER PROGRAMS FOR CONGESTION CONTROL IN A TRANSPORT NODE OF A COMMUNICATION NETWORK 审中-公开
    计算机实现方法，通信网络运输节点中的控制控制系统和计算机程序

    公开(公告)号：US20160294698A1

    公开(公告)日：2016-10-06

    申请号：US15085337

    申请日：2016-03-30

    Applicant: Telefonica, S.A.

    Inventor： Ignacio BERBERANA FERNANDEZ-MURIAS

    IPC: H04L12/801 ,  H04L12/825

    CPC classification number: H04L47/12 ,  H04L47/24 ,  H04L47/2441 ,  H04L47/25 ,  H04L49/3045

    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.

    Abstract translation: 所述方法包括通过分类单元（102）识别和分类在固定比特率数据分组流（FB）和可变比特率数据分组流（VB）之间的接收数据分组流; 将所识别的和分类的固定比特率数据分组流（FB）发送到间隔单元（103），所述比赛单元将固定比特率数据分组流（FB）的传输间隔到所述传输节点（100）的出口端口; 以及将与所述可变比特率数据分组流（VB）相关的配置参数发送到虚拟队列单元（104），所述虚拟队列单元（104）包括运行用于激活一个或多个拥塞校正过程的算法的处理器，其中， 情况下，所述算法获得的结果超过或等于激活对应的拥塞校正过程的至少一个阈值。

    Method for cell reselection and cell handover in a wireless communication system
    8.
    发明授权
    Method for cell reselection and cell handover in a wireless communication system 有权
    无线通信系统中小区重选和小区切换的方法

    公开(公告)号：US09439115B2

    公开(公告)日：2016-09-06

    申请号：US14122135

    申请日：2012-05-22

    Applicant: Luis Cucala Garcia

    Inventor： Luis Cucala Garcia

    IPC: H04W36/04 ,  H04W36/00 ,  H04W36/30

    CPC classification number: H04W36/04 ,  H04W36/0083 ,  H04W36/30

    Abstract: The method comprises: a user equipment measuring its proximity to one or more cells, or radio access nodes, by detecting the signal emission power thereof, and recognizing some cells as distinctive cells which radio section can be switched off when no user equipment is camping in it; determining that at least one of said cells is candidate for cell reselection or handover as a function of said signal emission power, and, if the cell is a distinctive cell, directly determining it as a candidate cell even if its signal emission power is not detected; and performing the cell reselection or handover between the user equipment and the candidate cell.

    Method and system for pre-reservation timer adaptation in PCE based networks
    9.
    发明授权
    Method and system for pre-reservation timer adaptation in PCE based networks 有权
    在基于PCE的网络中预先预约定时器适配的方法和系统

    公开(公告)号：US09398353B2

    公开(公告)日：2016-07-19

    申请号：US14157665

    申请日：2014-01-17

    Applicant: Telefonica, S.A.

    Inventor： Victor Lopez Alvarez

    IPC: H04L12/28 ,  H04Q11/00 ,  H04L12/717

    CPC classification number: H04Q11/0003 ,  H04L45/42

    Abstract: The method updating the status of a network by means of a protocol of the control plane of said network and in response to a path request from at least a path computation client (PCC) pre-reserving during a reserved period of time (Tres), by at least one path computation element (PCE), a plurality of network resources in at least one traffic engineering database (TED) of the at least one PCE. The method dynamically modifying by a timer policy said reserved period of time (Tres) by at least using information data regarding the delay of said control plane.The system of the invention is adapted to implement the method of the invention.

    Abstract translation: 所述方法通过所述网络的控制平面的协议来更新网络的状态，并且响应于在预留时间段（Tres）期间预先保留的至少路径计算客户端（PCC）的路径请求， 通过至少一个路径计算元件（PCE），所述至少一个PCE的至少一个流量工程数据库（TED）中的多个网络资源。 通过至少使用关于所述控制平面的延迟的信息数据，由定时器策略动态修改所述保留时间段（Tres）的方法。 本发明的系统适用于实现本发明的方法。

    A DISTRIBUTED HEALTH-CHECK METHOD FOR WEB CACHING IN A TELECOMMUNICATION NETWORK
    10.
    发明申请
    A DISTRIBUTED HEALTH-CHECK METHOD FOR WEB CACHING IN A TELECOMMUNICATION NETWORK 有权
    网络在电信网络中的分布式健康检查方法

    公开(公告)号：US20160191646A1

    公开(公告)日：2016-06-30

    申请号：US14652202

    申请日：2013-12-10

    Applicant: TELEFONICA, S.A.

    Inventor： Xiaoyuan YANG ,  Martin Ivan LEVI ,  Eguzki ASTIZ LEZAUN ,  Armando Antonio GARCIA SANCHEZ MENDOZA ,  David GUIJARRO GUILLEN ,  Arcandio PANDO CAO ,  Maite BURREL ,  David CONEJERO OLESTI

    IPC: H04L29/08 ,  H04L12/24 ,  H04L12/26

    CPC classification number: H04L67/2842 ,  G06F17/30902 ,  H04L41/0893 ,  H04L43/10 ,  H04L67/22 ,  H04L67/322

    Abstract: A distributed health-check method for web caching in a telecommunication network, wherein a plurality of web caching nodes are coordinated to monitor a set of origin servers where web content is generated. The method includes associating to each user of the telecommunication network requesting the web content buckets as logical containers for holding the web content requested; generating a list of users of the telecommunication network requesting the web content; and performing the plurality of web caching nodes a number of health-checks to the set of origin servers to download the requested web content. A filtering of the set of origin servers is performed for grouping in different areas of interest and the number of health-checks are performed by a limited number of caching nodes receiving the web content requests. The limited number of caching nodes selected belonging to a specific area of interest of the set of origin servers monitoring them.

    Abstract translation: 一种用于电信网络中的网络缓存的分布式健康检查方法，其中协调多个网络缓存节点以监视生成web内容的一组原始服务器。 该方法包括将请求网络内容桶的电信网络的每个用户作为用于保持所请求的网络内容的逻辑容器相关联; 生成请求网络内容的电信网络的用户列表; 以及对所述多个web缓存节点执行多个健康检查，以对所述一组源服务器下载所请求的web内容。 执行原始服务器集合的过滤以在不同感兴趣的区域中进行分组，并且健康检查的数量由接收到web内容请求的有限数量的缓存节点执行。 所选择的有限数量的缓存节点属于监视它们的原始服务器组的特定感兴趣区域。

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