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：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：US20150189644A1

公开(公告)日：2015-07-02

申请号：US14401755

申请日：2013-05-13

Applicant: Telefonica, S.A.

Inventor： Javier Lorca Hernando

IPC: H04W72/04 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/048

Abstract: A method and a system for channel state information (CSI) reporting in LTE networks according to the mobility of user equipment. The method includes user equipment (UE) transmitting to an LTE cellular base station (eNodeB), a CSI report containing quality information including CQI, PMI and RI indicators on an uplink radio channel in a periodic manner using a physical uplink shared channel (PUSCH), the CSI reporting activated based on a low mobility estimation of the UE and including a first CSI report type containing CSI information in DWT form of the channel impulse responses and average CQI indications for the codewords in use, being some of the DWT coefficients admissible to be discarded for increased compression; and a second CSI report type containing differences in coefficients of the DWT for each channel impulse responses, and differences in the average of CQI values. The system is adapted to implement the method.

Abstract translation: 一种根据用户设备移动性的LTE网络中信道状态信息（CSI）报告的方法和系统。 该方法包括使用物理上行链路共享信道（PUSCH）向周期性方式向LTE蜂窝基站（eNodeB）发送包括CQI，PMI和RI指示符的质量信息的CSI报告的用户设备（UE） 基于UE的低移动性估计激活了CSI报告，并且包括包含信道脉冲响应的DWT形式的CSI信息的第一CSI报告类型和正在使用的码字的平均CQI指示，是允许的一些DWT系数 丢弃以增加压缩; 以及包含每个信道脉冲响应的DWT系数差异的第二CSI报告类型，以及CQI值的平均值的差异。 该系统适用于实现该方法。