公开(公告)号：WO2014060225A1

公开(公告)日：2014-04-24

申请号：PCT/EP2013/070721

申请日：2013-10-04

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier

IPC: D06F58/28 ,  H04W56/00 ,  H04W92/20

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

Abstract: A method for providing phase synchronization to non-phase synchronized cellular base stations 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.

Abstract translation: 一种用于向非相位同步的蜂窝基站提供相位同步的方法该方法包括至少一个相位同步的蜂窝基站，该蜂窝基站具有至少一个用于向至少一个非同步蜂窝基站发送信号的发射天线， 包括将所述相位同步的蜂窝基站的所述至少一个发射天线发送信标信号给所述至少一个非相位同步蜂窝基站，作为所述传输信号的一部分，所述信标信号包括两个正交长度-8 沃尔什 - 哈达玛序列由所述至少一个相位同步蜂窝基站广播，以提供所述相位同步。

公开(公告)号：WO2021052819A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/075084

申请日：2020-09-08

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier ,  SERNA SANTIAGO, Elena ,  ESTEBAN RIVAS, Juan, Francisco

IPC: H04B7/0452 ,  H04B7/06 ,  H04B7/08

Abstract: 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.

公开(公告)号：WO2020178229A1

公开(公告)日：2020-09-10

申请号：PCT/EP2020/055421

申请日：2020-03-02

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier ,  SERNA SANTIAGO, Elena

IPC: H04L5/14 ,  H04L5/00

Abstract: A method and device for optimal coexistence of a first cellular Time-Division Duplex, TDD, system and a second TDD system operating in the same frequency band. The proposed solution is capable of minimizing interferences without modifying the (RF and SW) characteristics of the second system, while at the same time achieving flexibility in UL:DL traffic ratio.

公开(公告)号：WO2012110650A1

公开(公告)日：2012-08-23

申请号：PCT/EP2012/052806

申请日：2012-02-17

Applicant: TELEFONICA, S.A. ,  LORCA HERNANDO, Javier

Inventor： LORCA HERNANDO, Javier

IPC: H04W72/12

CPC classification number: H04W72/085 ,  H04W72/1226

Abstract: A method and radio network entity for scheduling resources comprising: selecting the user for which the scheduling metric calculated based on CQI reports is a main maximum in a certain frequency subband and checking whether there is another subband in which the selected user has a calculated scheduling metric value higher than the main maximum. If so, secondary maxima of scheduling metrics for said user and others in another different subband are searched and compared with the previous calculated maximum. According to the result of this comparison, each user is assigned to at least one frequency subband, up to K subbands which can be adjacent or not depending upon the configuration of the network entity in uplink and downlink (e.g., supporting LTE). Scheduling of both time and frequency resources is optimized and simultaneously the throughput of users in a cell is maximized.

Abstract translation: 一种用于调度资源的方法和无线电网络实体，包括：选择基于CQI报告计算的所述调度度量是所述用户在特定频率子带中的主要最大值，并检查是否存在所选择的用户具有计算的调度度量 价值高于主要最大值。 如果是，则搜索另一不同子带中的所述用户和其他用户的调度度量的次要最大值，并将其与先前计算的最大值进行比较。 根据该比较的结果，根据上行链路和下行链路（例如，支持LTE）中的网络实体的配置，将每个用户分配给至少一个频率子带，直到可以相邻的K个子带。 优化了时间和频率资源的调度，同时使单元中用户的吞吐量最大化。

公开(公告)号：WO2021052820A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/075099

申请日：2020-09-08

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier ,  SERNA SANTIAGO, Elena ,  ESTEBAN RIVAS, Juan, Francisco

IPC: H04B7/06

Abstract: A method and system for optimizing the performance of spatial multiplexing techniques in SU-MIMO wireless systems comprising subsectors where the presence of significant correlation between antenna elements can impair the performance of SU-MIMO techniques. The proposed solution ensures optimum selection of a specific combination of transmit antenna elements that maximizes SU-MIMO performance.

公开(公告)号：WO2014076004A2

公开(公告)日：2014-05-22

申请号：PCT/EP2013/073367

申请日：2013-11-08

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier ,  PABLO GONZÁLEZ, Mª Luz ,  VILLANÚA PATO, Ana ,  APARICIO PEÑA, Mª Teresa

IPC: H04W88/08 ,  H03M7/30

CPC classification number: H04W88/085 ,  H03M7/3068 ,  H04B10/25758

Abstract: A Method and a System for lossless compression and decompression of baseband digital signals in distributed LTE-Advanced (LTE-A) radio access networks The method comprising at least one Remote Radio Head with a plurality of transmit and receive antennas connected to at least one Baseband Unit through a wired connection denoted as fronthaul link. In order to perform said lossless compression and decompression of a plurality of LTE-A baseband digital signals the method uses two additional processing nodes hosted at both ends of said fronthaul link in both an uplink direction and a downlink direction; transforms for both of said uplink and downlink directions said plurality of LTE-A baseband digital signals into frequency domain; and sends through said fronthaul link information corresponding to a set of resource blocks occupied with said plurality of LTE-A baseband digital signals. The system of the invention is adapted to implement the method of the invention.

Abstract translation: 一种用于分布式LTE-Advanced（LTE-A）无线电接入网络中的基带数字信号的无损压缩和解压缩的方法和系统。该方法包括至少一个远程无线电头，多个发射和接收天线连接到至少一个基带 单元通过有线连接表示为fronthaul链路。 为了执行多个LTE-A基带数字信号的无损压缩和解压缩，该方法在上行链路方向和下行链路方向上使用在所述前端链路的两端托管的两个附加处理节点; 将所述多个LTE-A基带数字信号的所述上行链路和下行链路方向的两个变换成频域; 并且通过所述前端链路发送与所述多个LTE-A基带数字信号占用的一组资源块相对应的信息。 本发明的系统适用于实现本发明的方法。

公开(公告)号：WO2013189728A1

公开(公告)日：2013-12-27

申请号：PCT/EP2013/061403

申请日：2013-06-03

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier

IPC: H04J11/00

CPC classification number: H04W72/082 ,  H04J11/0053

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 cancellation.

Abstract translation: 该方法包括至少一个用户设备，该用户设备具有至少四个天线，无线连接到具有一个和四个发射天线之间的服务基站，并且遭受来自具有一个与四个发射天线之间的至少一个干扰基站的干扰，建立数据 多个天线之间的传输链路，以及：在所述服务基站和所述至少一个干扰基站之间应用时移延迟，以便在所述数据传输时避免服务和干扰基站的小区参考信号（CRS）之间的冲突 成立 并引入用于实现层间干扰消除的PDSCH发送和接收的物理层的改变，所引入的所述改变包括在干扰小区的CRS信号的符号（1）和子载波索引（k）处引入传输间隙的模式， 这将被所述至少一个用户设备利用以实现有效的干扰消除。

公开(公告)号：WO2014032908A2

公开(公告)日：2014-03-06

申请号：PCT/EP2013/066370

申请日：2013-08-05

Applicant: TELEFONICA, S.A

Inventor： LORCA HERNANDO, Javier

CPC classification number: H04W36/32 ,  H04L5/0048 ,  H04W24/02 ,  H04W36/04 ,  H04W48/04 ,  H04W48/12 ,  H04W64/00 ,  H04W64/006 ,  H04W88/02 ,  H04W88/08

Abstract: The method comprising estimating, at least one wireless user device (UE) its own velocity from at least one downlink pilot signal being transmitted by any base station from a plurality of different base stations, and further comprising: - broadcasting each one of said plurality of different base stations a parameter relative to its own cell size; - performing said at least one wireless user device in idle mode cell selections and reselections based on said plurality of base station cell size parameters received and said at least one wireless user device estimated velocity; and - reporting, said at least one wireless user device in connected mode, said estimated velocity and cell sizes of neighboring base stations to a serving base station in order to perform handovers based on said reported estimated velocity and said neighboring base station cell sizes.

Abstract translation: 所述方法包括：从至少一个下行链路导频信号估计至少一个无线用户设备（UE），所述至少一个下行链路导频信号由任何基站从多个不同的基站发射，并且还包括： - 广播所述多个 不同的基站相对于其自身的小区大小的参数; - 基于接收到的所述多个基站小区大小参数和所述至少一个无线用户设备估计速度，在空闲模式小区选择和重新选择中执行所述至少一个无线用户设备; 所述至少一个无线用户设备处于连接模式，所述相邻基站的估计速度和小区大小到服务基站，以便基于所述报告的估计速度和所述相邻基站小区大小进行切换。

公开(公告)号：WO2014016280A1

公开(公告)日：2014-01-30

申请号：PCT/EP2013/065481

申请日：2013-07-23

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier

IPC: H04W28/08 ,  H04W28/20

CPC classification number: H04W28/085 ,  H04L47/14 ,  H04W16/08 ,  H04W24/02 ,  H04W28/08 ,  H04W36/22 ,  H04W48/20 ,  H04W72/0486

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 at least a base station and/or radio network controllers, each network cell broadcasting a cell load indicator. Where said at least one wireless user terminal performs following actions: • collecting said broadcasted cell load indicator of each one of said plurality of network cells; • providing to said wireless network, information about the actual cell load indicators of said plurality of cells, and • performing a network cell selection based on said broadcasted cell load indicators, • wherein said cell selection is performed without any exchange of cell load indicators between said plurality of network cells.

Abstract translation: 该方法包括至少一个通过无线网络连接到服务基站的无线用户终端（UE）和多个网络小区，每个网络小区至少包括基站和/或无线电网络控制器，每个网络小区广播小区 负载指示灯 其中所述至少一个无线用户终端执行以下动作：。 收集所述多个网络小区中的每一个的广播小区负载指示符; 。 向所述无线网络提供关于所述多个小区的实际小区负载指示符的信息，以及。 基于所述广播的小区负载指示符执行​​网络小区选择。 其中所述小区选择在所述多个网络小区之间没有任何交换小区负载指示符的情况下执行。

公开(公告)号：WO2014012925A1

公开(公告)日：2014-01-23

申请号：PCT/EP2013/064993

申请日：2013-07-16

Applicant: TELEFONICA, S.A.

Inventor： LORCA HERNANDO, Javier

IPC: H04L1/00 ,  H04L1/06

CPC classification number: H03M13/2771 ,  H03M13/258 ,  H03M13/2792 ,  H04B7/02 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0606 ,  H04L1/0631 ,  H04L1/065 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/001

Abstract: A method and a system for implementing a turbo-diversity scheme in wireless OFDM systems. 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.

Abstract translation: 一种用于在无线OFDM系统中实现turbo分集方案的方法和系统。 所述方法包括：通过，基站或用户终端，包括数据信号和编码的信息，第一和第二turbo编码器，所述接收的数据信号，生成包括一组系统和奇偶校验位的两个不同turbo码块。 其中，为了增强检测，通过无线OFDM系统同时发送两个不同的turbo码块，其中由所述第二turbo编码器编码的数据信号由外部位交织器进行交织的先前编码。 本发明的系统被设置为实现本发明的方法。