公开(公告)号：US10009209B2

公开(公告)日：2018-06-26

申请号：US14228155

申请日：2014-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peiying Zhu ,  Jianglei Ma ,  Ming Jia ,  Wen Tong

IPC: H04J1/12 ,  H04L27/26 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04L27/2637 ,  H04L5/0021 ,  H04L5/0066 ,  H04L25/03834 ,  H04L27/2602 ,  H04L27/264

Abstract: A method for operating a device includes determining adaptation criteria for a waveform to be transmitted by a transmitting device over a communications channel towards a receiving device, and adjusting a generalized multi-carrier multiplexing parameter (GMMP) of the waveform in accordance with the adaptation criteria. The method also includes transmitting an indicator of the adjusted GMMP to at least one of the transmitting device and the receiving device.

公开(公告)号：US09986583B2

公开(公告)日：2018-05-29

申请号：US15248292

申请日：2016-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Ming Jia

IPC: H04W24/02 ,  H04W72/12 ,  H04L1/00 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04W72/1273 ,  H04L1/00 ,  H04L5/0048 ,  H04L5/14 ,  H04L25/0226 ,  H04W24/02 ,  H04W72/1289

Abstract: System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.

公开(公告)号：US09973362B2

公开(公告)日：2018-05-15

申请号：US14490483

申请日：2014-09-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Jia ,  Jianglei Ma

IPC: H04B7/04 ,  H04B1/04 ,  H04L27/26 ,  H04W52/02 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04L27/2623 ,  H03F3/24 ,  H04B1/0483 ,  H04B7/0452 ,  H04B7/0617 ,  H04B2001/0408 ,  H04L27/2626 ,  H04W52/028 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/24 ,  Y02D70/40 ,  Y02D70/444

Abstract: Methods and devices for common channel low PAPR signaling are disclosed having a power amplifier set configured to transmit broad-beam signals over a frequency band narrower than the available bandwidth and modulated with a low PAPR sequence. A second power amplifier set may be configured to transmit narrow-beam unicast signals.

公开(公告)号：US09693172B2

公开(公告)日：2017-06-27

申请号：US14228187

申请日：2014-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Cao ,  Ming Jia ,  Jianglei Ma ,  Javad Abdoli

IPC: H04B7/00 ,  H04W4/00 ,  H04W28/02 ,  H04J14/02 ,  H04W72/04

CPC classification number: H04W4/70 ,  H04J14/02 ,  H04L1/0003 ,  H04L1/0009 ,  H04W28/02 ,  H04W28/0284 ,  H04W72/048

Abstract: A method for operating a machine-type device (MTD) includes determining communications requirements for a machine-type device (MTD), and assigning a first signal waveform selected from a plurality of signal waveforms to the MTD in accordance with the determined communications requirements, wherein each signal waveform has an associated characteristic signal bandwidth.

公开(公告)号：US20170064700A1

公开(公告)日：2017-03-02

申请号：US14836695

申请日：2015-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Cao ,  Ming Jia ,  Jianglei Ma

IPC: H04W72/04 ,  H04W4/00

CPC classification number: H04W4/70 ,  H04W72/121

Abstract: Methods and systems for a frame structure for machine-type communications (MTC) with adjustable pulse bandwidth are described. In an embodiment, the frame structure is an uplink frame structure that illustrates a representation of a plurality of coverage levels. The coverage levels are associated with a coverage range of a base station. Each coverage level is associated with corresponding sub-frames, and each sub-frame within a coverage level has the same sub-frame length and bandwidth.

Abstract translation: 描述了具有可调脉冲带宽的机器型通信（MTC）的框架结构的方法和系统。 在一个实施例中，帧结构是示出多个覆盖水平的表示的上行链路帧结构。 覆盖水平与基站的覆盖范围相关联。 每个覆盖级别与对应的子帧相关联，并且覆盖级别内的每个子帧具有相同的子帧长度和带宽。

公开(公告)号：US20170041107A1

公开(公告)日：2017-02-09

申请号：US15333448

申请日：2016-10-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jing Qiu ,  Ming Jia

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/005 ,  H04B7/0452 ,  H04B7/046 ,  H04B7/0615 ,  H04B7/0862 ,  H04L1/06 ,  H04L5/0051 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0228

Abstract: Embodiments of the present invention provide a method and apparatus for sending and receiving a signal, and relate to the field of wireless communication, where a quantity of pilots does not increase with increasing paired data streams of an MU-MIMO system, and overheads of the pilots are fixed. The method includes: determining, by a transmitter, a transmitting precoding vector of a primary pilot signal of a first receiver and an estimated receiving filtering vector; determining a transmitting precoding vector of a secondary pilot signal of the first receiver; determining a to-be-sent primary pilot signal, to-be-sent user data of the first receiver, and a to-be-sent secondary pilot signal; and sending the first receiver the to-be-sent primary pilot signal, the to-be-sent user data of the first receiver, and the to-be-sent secondary pilot signal.

Abstract translation: 本发明的实施例提供了一种用于发送和接收信号的方法和装置，涉及无线通信领域，其中导频数量不随着MU-MIMO系统的配对数据流的增加而增加，并且 飞行员是固定的。 该方法包括：由发射机确定第一接收机的主导频信号和估计的接收滤波向量的发射预编码矢量; 确定所述第一接收机的次导频信号的发射预编码矢量; 确定要发送的主要导频信号，待发送的第一接收机的用户数据和待发送的次要导频信号; 以及向所述第一接收机发送所述待发送的主导频信号，所述第一接收机的待发送用户数据和所述待发送的次要导频信号。

公开(公告)号：US20160366698A1

公开(公告)日：2016-12-15

申请号：US15248292

申请日：2016-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Ming Jia

IPC: H04W72/12 ,  H04L5/14 ,  H04L5/00 ,  H04W24/02

CPC classification number: H04W72/1273 ,  H04L1/00 ,  H04L5/0048 ,  H04L5/14 ,  H04L25/0226 ,  H04W24/02 ,  H04W72/1289

Abstract: System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.

公开(公告)号：US09450787B2

公开(公告)日：2016-09-20

申请号：US14163494

申请日：2014-01-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Jia ,  Jianglei Ma ,  Peiying Zhu

IPC: H04B7/02 ,  H04L25/03 ,  H04B7/04

CPC classification number: H04L25/03006 ,  H04B7/0452 ,  H04B7/0456 ,  H04L25/0391 ,  H04L2025/03426 ,  H04L2025/03624

Abstract: Embodiments are provided for early termination of an iterative process of determining channel directions and transmissions in multi-user multiple-input and multiple-output (MU-MIMO) communications systems. In an embodiment, a base station or a user equipment (UE) calculates a multi-user channel matrix using a first iteration of a null-space singular value decomposition (SVD) based iterative zero-forcing (I-ZF) algorithm for multi-user MU-MIMO. The base station or UE repeats updating the multi-user channel matrix using a next iteration of the algorithm and the multi-user channel matrix calculated in a previous iteration, until the diagonal elements of the multi-user channel matrix are greater than the off-diagonal elements by a predefined threshold. Upon determining that the diagonal elements are greater than the off-diagonal elements by the predefined threshold, a plurality of transmission signals are calculated using the last updated multi-user channel matrix.

Abstract translation: 提供实施例用于在多用户多输入和多输出（MU-MIMO）通信系统中早期终止确定信道方向和传输的迭代过程。 在一个实施例中，基站或用户设备（UE）使用基于零空间奇异值分解（SVD）的迭代迫零（I-ZF）算法的第一次迭代来计算多用户信道矩阵， 用户MU-MIMO。 基站或UE使用算法的下一次迭代和在先前迭代中计算出的多用户信道矩阵来重复更新多用户信道矩阵，直到多用户信道矩阵的对角线元素大于非用户信道矩阵， 对角元素按预定阈值。 在确定对角元素大于非对角线元素预定阈值时，使用最后更新的多用户信道矩阵来计算多个传输信号。

公开(公告)号：US20160105258A1

公开(公告)日：2016-04-14

申请号：US14946413

申请日：2015-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Jia ,  Mohammad Javad Abdoli ,  Jianglei Ma

IPC: H04L1/00 ,  H04L27/26

CPC classification number: H04L1/0054 ,  H04L25/03159 ,  H04L25/067 ,  H04L27/2631 ,  H04L27/2647 ,  H04L27/2652 ,  H04L27/2698 ,  H04L27/38

Abstract: System and method embodiments are provided for a receiver for circularly convolved signals. In an embodiment, a universal decoder for a circularly convolved signal includes a first decoder configured to decode the circularly convolved signal; a second decoder configured to decode a plurality of symbol lengths signal from a first portion of the circularly convolved signal, wherein the plurality of symbol lengths signal is time aligned with the circularly convolved signal before passing through the second decoder; and an adder component configured to sum a first decoder output coming from the first decoder and a second decoder output coming from the second decoder to produce a symbol value from which a log likelihood ratio (LLR) output is obtained.

Abstract translation: 为圆形卷积信号的接收机提供系统和方法实施例。 在一个实施例中，用于循环卷积信号的通用解码器包括：第一解码器，被配置为对圆形卷积信号进行解码; 第二解码器，被配置为从所述圆形卷积信号的第一部分解码多个符号长度信号，其中所述多个符号长度信号在通过所述第二解码器之前与所述圆形卷积信号进行时间对准; 以及加法器部件，被配置为对来自第一解码器的第一解码器输出和来自第二解码器的第二解码器输出进行求和，以产生从其获得对数似然比（LLR）输出的符号值。

公开(公告)号：US20160050039A1

公开(公告)日：2016-02-18

申请号：US14822492

申请日：2015-08-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu

IPC: H04J1/06

Abstract: A method for transmitting a waveform includes adjusting first multiplexing parameters of a first multi-carrier waveform to meet communications requirements of a communications system, generating a first signal in accordance with a first input bit block and a first modulation map, placing the first signal in a first subband, wherein the first subband is specified in accordance with the first adjusted multiplexing parameters, and transmitting the first subband.

Abstract translation: 用于发送波形的方法包括：调整第一多载波波形的第一多路复用参数以满足通信系统的通信要求，根据第一输入位块和第一调制图产生第一信号，将第一信号放入 第一子带，其中根据第一调整后的多路复用参数指定第一子带，并发送第一子带。