公开(公告)号：US09544171B2

公开(公告)日：2017-01-10

申请号：US14767018

申请日：2013-02-12

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Gilberto Berardinelli ,  Bernard Raaf ,  Fernando Tavares ,  Juergen Michel

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04L27/26 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04L25/03821 ,  H04L25/03343 ,  H04L27/2607 ,  H04W88/02 ,  H04W88/08

Abstract: An apparatus (UEA) may generate a zero-tail signal to be transmitted in an LTE/LTE-A cell, by introducing time domain samples with zero power or very low power in specific positions of a time symbol tail. The apparatus (UEA) may transmit the generated zero-tail signal to a base station (eNB), such that a first user terminal (UEA) is located in the cell farther away (e.g. on a cell edge) from the base station (eNB) than a second user terminal (UEB). Thus coexistence of signals sent by user terminals (UEA, UEB) located at different distances from the base station (eNB) within a same receiver window is enabled without inter-symbol interference. The generated zero-tail signal may also be transmitted from the first user terminal (UEA) or from the base station (eNB) in an outdoor system that is detectable by a neighboring indoor system.

Abstract translation: 通过在时间符号尾部的特定位置引入具有零功率或非常低功率的时域采样，装置（UEA）可以生成将在LTE / LTE-A小区中发送的零尾信号。 该装置（UEA）可以将生成的零尾信号发送到基站（eNB），使得第一用户终端（UEA）位于距离基站（eNB）更远的（例如，小区边缘）的小区中 ）比第二用户终端（UEB）。 因此，能够在没有符号间干扰的情况下启用位于与基站（eNB）不同距离处的同一接收机窗口内的用户终端（UEA，UEB）发送的信号的共存。 所产生的零尾信号也可以从邻近室内系统可检测的户外系统中的第一用户终端（UEA）或基站（eNB）发送。

公开(公告)号：US10797923B2

公开(公告)日：2020-10-06

申请号：US15573654

申请日：2015-05-19

Applicant: Nokia Solutions and Networks Oy

Inventor： Gilberto Berardinelli ,  Frank Frederiksen ,  Klaus Ingemann Pedersen ,  Kari Pekka Pajukoski

IPC: H04L27/26 ,  G06F17/14

Abstract: There is provided a method comprising: obtaining, by an apparatus, a first data block, a second data block and a third data block; generating a first signal, wherein a first part of the first signal is generated based on a data of the first data block, and wherein a second part of the first signal is generated based on a data of the second data block, the second part being subsequent in time domain compared with the first part; generating a second signal, wherein a first part of the second signal is generated based on a data of the third data block, and wherein a second part of the second signal is generated based on the data of the second data block, the second part being subsequent in time domain compared with the first part; and transmitting the first and second signals.

公开(公告)号：US20170094660A1

公开(公告)日：2017-03-30

申请号：US15126694

申请日：2014-03-31

Applicant: Nokia Solutions and Networks Oy

Inventor： Frank Frederiksen ,  Mads Lauridsen ,  Fernando Tavares ,  Gilberto Berardinelli

IPC: H04W72/04 ,  H04W52/02 ,  H04W72/12

CPC classification number: H04W72/0453 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/028 ,  H04W72/12 ,  H04W88/06 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/26

Abstract: Methods and apparatuses for controlling at least one device configured to receive scheduled frequency resources of a scheduled system are disclosed. At least one device in inactive mode is allocated a secondary frequency resource independently from scheduling of the scheduled system. A signal is transmitted to the at least one device in inactive mode a signal on the secondary frequency resource to control reception of the scheduled frequency resources. A device in inactive mode receiving the signal on the secondary frequency resource can control reception of the scheduled frequency resources based on the signal.

公开(公告)号：US09544173B1

公开(公告)日：2017-01-10

申请号：US14854474

申请日：2015-09-15

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Gilberto Berardinelli ,  Frank Frederiksen ,  Klaus Ingemann Pedersen ,  Preben Elgaard Mogensen ,  Kari Pekka Pajukoski

IPC: H04L27/06 ,  H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2613 ,  H04L25/0238 ,  H04L27/2636

Abstract: Systems, methods, apparatuses, and computer program products for generating sequences for zero-tail discrete fourier transform (DFT)-spread-orthogonal frequency division multiplexing (OFDM) (ZT DFT-s-OFDM) reference signals. One method includes adding a zero vector to an input sequence, and performing an iterative manipulation of the input sequence. The performing of the iterative manipulation of the input sequence may include, for example: computing frequency domain response of the sequence, normalizing elements of the computed frequency domain sequence to unitary power while maintaining phase of each of the elements, converting the sequence to time domain, generating a zero-padded sequence by forcing a zero head and tail of the sequence, and repeating the steps until a final sequence with zero-tail and flat frequency response is obtained.

Abstract translation: 用于生成零尾离散傅里叶变换（DFT） - 扩频正交频分复用（OFDM）（ZT DFT-s-OFDM）参考信号的序列的系统，方法，装置和计算机程序产品。 一种方法包括向输入序列添加零向量，并对输入序列执行迭代操作。 执行输入序列的迭代操作可以包括例如：计算序列的频域响应，将所计算的频域序列的元素归一化为单位幂，同时维持每个元素的相位，将序列转换为时域 通过强制序列的零头和尾部产生零填充序列，并重复这些步骤，直到获得具有零尾和平坦频率响应的最终序列。