公开(公告)号：EP3200413B1

公开(公告)日：2020-09-16

申请号：EP14904602.1

申请日：2014-10-22

申请人： Huawei Technologies Co., Ltd.

发明人： LIU, Sheng ,  LU, Weishan ,  CHEN, Teyan

IPC分类号： H04L27/26

公开(公告)号：EP3200413A1

公开(公告)日：2017-08-02

申请号：EP14904602.1

申请日：2014-10-22

申请人： Huawei Technologies Co., Ltd.

发明人： LIU, Sheng ,  LU, Weishan ,  CHEN, Teyan

IPC分类号： H04L27/26

CPC分类号： H04L27/2608 ,  H04B7/0452 ,  H04L27/26 ,  H04W72/0453

摘要： Embodiments of the present invention provide a signal processing method and apparatus, and a device, applied to an MU-MIMO system. The signal processing apparatus includes: a signal acquiring module and a sending module. A signal in the embodiments of the present invention is a signal including N spatial flows, and the signal includes a training field, where the training field includes a first part and a second part. Subcarriers of an OFDM symbol in the second part of the training field are divided into N TSSs in a division manner that is the same as a division manner of sub-carriers of an OFDM symbol in the first part of the training field, and each spatial flow corresponds to at least one sub-carrier in a TSS, in each frequency domain location, of the OFDM symbol in the second part of the training field. By means of a structure of the second part of the training field in the embodiments of the present invention, phase correction is effectively performed on channel estimation that is obtained in another OFDM symbol in the first part of the training field, so that precision of the channel estimation is improved, and estimation performance is improved.

摘要翻译： 本发明的实施例提供了应用于MU-MIMO系统的信号处理方法和装置以及设备。 信号处理装置包括：信号获取模块和发送模块。 本发明实施例中的信号为包含N个空间流的信号，该信号包括训练场，训练场包括第一部分和第二部分。 训练字段的第二部分中的OFDM符号的副载波以与训练字段的第一部分中的OFDM符号的副载波的分割方式相同的分割方式被划分为N个TSS，并且每个空间 流对应于训练字段的第二部分中的OFDM符号的每个频域位置中的TSS中的至少一个子载波。 通过本发明实施例中训练字段的第二部分的结构，对训练字段的第一部分中的另一个OFDM符号中获得的信道估计有效地执行相位校正，使得 信道估计得到改善，估计性能得到改善。

公开(公告)号：EP3240351A1

公开(公告)日：2017-11-01

申请号：EP15876663.4

申请日：2015-11-26

申请人： Huawei Technologies Co., Ltd.

发明人： DU, Zhenguo ,  LU, Weishan ,  YANG, Yunsong ,  RONG, Zhigang

IPC分类号： H04W74/00

CPC分类号： G06F21/606 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/03866 ,  H04L27/2602 ,  H04W28/16 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08 ,  H04W92/10

摘要： Embodiments of the present invention provide a data transmission protection method and apparatus. The method includes: receiving, by a station, resource allocation information sent by an access point; obtaining, according to a status of mutual overlap between an allocated transmission channel and multiple subchannels, at least one overlapping subchannel used by the station to send a transmission protection message; and sending the transmission protection message on a current overlapping subchannel according to a status of whether each overlapping subchannel in the at least one overlapping subchannel used by the station to send the transmission protection message is used only by the station to send the transmission protection message, where the transmission protection message is used to protect downlink data transmission from the access point to the station, the transmission protection message includes duration, and the duration is used to indicate an exclusive time of the station for the transmission channel allocated to the station. The present invention can protect data transmission from an access point to a station.

摘要翻译： 本发明实施例提供一种数据传输保护方法和装置。 该方法包括：站点接收接入点发送的资源分配信息; 根据分配的传输通道与多个子通道之间的相互重叠状态，获取所述站点用于发送传输保护消息的至少一个重叠子通道; 并根据所述站点用于发送所述传输保护消息的至少一个重叠子信道中的每个重叠子信道是否仅用于所述站点发送所述传输保护消息的状态，在当前重叠子信道上发送所述传输保护消息， 其中传输保护消息用于保护从接入点到站的下行数据传输，传输保护消息包括持续时间，并且持续时间用于指示站分配给该站的传输信道的专用时间。 本发明可以保护从接入点到站的数据传输。

公开(公告)号：EP2924805B1

公开(公告)日：2017-09-13

申请号：EP13864046.1

申请日：2013-12-20

申请人： Huawei Technologies Co., Ltd.

发明人： LU, Weishan ,  WU, Tao

IPC分类号： H01Q21/20 ,  H01Q5/314 ,  H01Q19/32 ,  H01Q5/385 ,  H04B7/0413

CPC分类号： H01Q21/06 ,  H01Q3/446 ,  H01Q5/314 ,  H01Q5/385 ,  H01Q19/32 ,  H01Q21/20 ,  H04B7/0413 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/444

摘要： Embodiments of the present invention provide a single radio frequency double-stream transmission apparatus, an application method and an antenna system, wherein the apparatus includes: a radio frequency link, a reactance control circuit, a parasitic reactor, an active antenna and an even number M of parasitic antennas, wherein M is larger than 2; the radio frequency link is configured to generate a radio frequency signal; the active antenna is connected with the radio frequency link, the parasitic antennas are respectively connected with the parasitic reactor, the distances from the parasitic antennas to the active antenna are the same, and the radian between adjacent parasitic antennas is 360 M degrees; the parasitic reactor may be adjusted by the reactance control circuit to make the reactance values of any pair of parasitic antennas in mirror symmetry via the active antenna be different and the reactance values of the rest pairs of parasitic antennas in mirror symmetry via the active antenna be equal respectively. An additional degree of freedom of adjustable parasitic reactance is introduced to achieve double-stream multiplexing, so as to achieve high order modulation of Single RF MIMO. The system stability may be ensured, the system power may be saved and the computational burden may be alleviated, while achieving the high order modulation.

摘要翻译： 本发明实施例提供了一种单射频双流传输装置，应用方法和天线系统，所述装置包括：射频链路，电抗控制电路，寄生电抗器，有源天线和偶数 M个寄生天线，其中M大于2; 射频链路被配置为生成射频信号; 有源天线与射频链路连接，寄生天线分别与寄生电抗器连接，寄生天线到有源天线的距离相同，相邻寄生天线间的弧度为360M; 寄生电抗器可以通过电抗控制电路进行调整，以使通过有源天线镜像对称的任何一对寄生天线的电抗值不同，并且通过有源天线镜像对称的剩余寄生天线对的电抗值为 分别相等。 通过引入可调寄生电抗的额外自由度来实现双流复用，从而实现单射频MIMO的高阶调制。 在实现高阶调制的同时，可以保证系统的稳定性，节省系统功耗，减轻计算负担。

公开(公告)号：EP2924805A1

公开(公告)日：2015-09-30

申请号：EP13864046.1

申请日：2013-12-20

申请人： Huawei Technologies Co., Ltd.

发明人： LU, Weishan ,  WU, Tao

IPC分类号： H01Q3/24

CPC分类号： H01Q21/06 ,  H01Q3/446 ,  H01Q5/314 ,  H01Q5/385 ,  H01Q19/32 ,  H01Q21/20 ,  H04B7/0413 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/444

摘要： Embodiments of the present invention provide a single radio frequency double-stream transmission apparatus, an application method and an antenna system, wherein the apparatus includes: a radio frequency link, a reactance control circuit, a parasitic reactor, an active antenna and an even number M of parasitic antennas, wherein M is larger than 2; the radio frequency link is configured to generate a radio frequency signal; the active antenna is connected with the radio frequency link, the parasitic antennas are respectively connected with the parasitic reactor, the distances from the parasitic antennas to the active antenna are the same, and the radian between adjacent parasitic antennas is 360 M degrees; the parasitic reactor may be adjusted by the reactance control circuit to make the reactance values of any pair of parasitic antennas in mirror symmetry via the active antenna be different and the reactance values of the rest pairs of parasitic antennas in mirror symmetry via the active antenna be equal respectively. An additional degree of freedom of adjustable parasitic reactance is introduced to achieve double-stream multiplexing, so as to achieve high order modulation of Single RF MIMO. The system stability may be ensured, the system power may be saved and the computational burden may be alleviated, while achieving the high order modulation.

摘要翻译： 本发明实施例提供了一种单射频双流传输装置，应用方法和天线系统，所述装置包括：射频链路，电抗控制电路，寄生电抗器，有源天线和偶数 M个寄生天线，其中M大于2; 射频链路被配置为生成射频信号; 有源天线与射频链路连接，寄生天线分别与寄生电抗器连接，寄生天线到有源天线的距离相同，相邻寄生天线之间的弧度为360M; 寄生电抗器可以通过电抗控制电路进行调整，以使通过有源天线镜像对称的任何一对寄生天线的电抗值不同，并且通过有源天线镜像对称的剩余寄生天线对的电抗值为 分别相等。 通过引入可调寄生电抗的额外自由度来实现双流复用，从而实现单射频MIMO的高阶调制。 在实现高阶调制的同时，可以保证系统的稳定性，节省系统功耗，减轻计算负担。

公开(公告)号：EP4125234A1

公开(公告)日：2023-02-01

申请号：EP22182263.8

申请日：2014-09-28

申请人： Huawei Technologies Co., Ltd.

发明人： LIN, Wei ,  LIU, Le ,  ZHU, Jun ,  LU, Weishan

IPC分类号： H04L5/00 ,  H04L27/26 ,  H04W52/02 ,  H04W84/12

摘要： The present invention discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN. In embodiments of the present invention, a cycle of a high-efficiency short training field sequence used for performing stage-2 AGC adjustment in the WLAN may be increased, and a maximum CSD value that can be used is further increased.

公开(公告)号：EP3121973B1

公开(公告)日：2018-03-07

申请号：EP14886038.0

申请日：2014-03-18

申请人： Huawei Technologies Co., Ltd.

发明人： LU, Weishan ,  WU, Tao

IPC分类号： H04B7/08 ,  H04B7/06

CPC分类号： H04B7/0632 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/0695 ,  H04B7/088 ,  H04W72/085

摘要： Embodiments of the present invention disclose a directional direction selection method, apparatus, and system. The method includes: sending L groups of pilots in an omnidirectional direction manner, where the L groups of pilots are received by UE by using L directional directions, and the L groups of pilots are used by the UE to switch to a directional direction with best channel quality in the L directional directions; sending, by a base station, S groups of pilots by using S directional directions respectively, where the S groups of pilots are in a one-to-one correspondence with the S directional directions, and the S groups of pilots are used by the UE to estimate channel quality corresponding to the S directional directions; determining, by the base station, an optimal directional direction in the S directional directions according to the channel quality corresponding to the S groups of pilots; and switching, by the base station, to the optimal directional direction in the S directional directions. In the embodiments of the present invention, an optimal directional direction corresponding to the UE when the base station uses omnidirectional directions is first determined, and then an optimal directional direction corresponding to the base station when the UE uses the optimal directional direction is determined, thereby reducing complexity to O ( M + N ).

公开(公告)号：EP3211845A1

公开(公告)日：2017-08-30

申请号：EP14905673.1

申请日：2014-11-14

申请人： Huawei Technologies Co., Ltd.

发明人： LIN, Wei ,  LIU, Le ,  BENEDETTO, Sergio ,  MONTORSI, Guido ,  LU, Weishan

IPC分类号： H04L27/26

CPC分类号： H04L27/2608 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/04 ,  H04L27/26 ,  H04L47/34 ,  H04W72/04 ,  H04W84/12

摘要： Embodiments of the present invention provide an interleaving processing method and device in a WLAN system. The apparatus includes: a bit parsing unit, configured to allocate bits in a coded data stream to n sub resource block interleaving units according to a specific sequence, where n is a positive integer greater than 1, and a value of n is a quantity of resource blocks allocated to the user; and the sub resource block interleaving units, configured to perform discrete interleaving on input bits. According to the foregoing apparatus and method, system performance can be improved.

摘要翻译： 本发明实施例提供了一种WLAN系统中的交织处理方法和设备。 该装置包括：比特解析单元，用于根据特定的序列将编码后的数据流中的比特分配给n个子资源块交织单元，其中，n为大于1的正整数，n的取值为 分配给用户的资源块; 子资源块交织单元，用于对输入比特进行离散交织。 根据上述装置和方法，可以提高系统性能。

公开(公告)号：EP3197114A1

公开(公告)日：2017-07-26

申请号：EP14899104.5

申请日：2014-08-06

申请人： Huawei Technologies Co. Ltd.

发明人： LU, Weishan ,  EZRI, Doron ,  LIU, Le

IPC分类号： H04L27/26

CPC分类号： H04L5/0048 ,  H04B7/0452 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2657 ,  H04W72/0453

摘要： The present invention discloses a method for transmitting information, a station, and an access point in a MU-MIMO system. The method includes: determining, by a first station, multiple to-be-sent first long training sequences, where the multiple first long training sequences include at least one pilot for phase tracking ; and sending, by the first station, the multiple first long training sequences to an access point on multiple symbols, where a second station sends multiple second long training sequences to the access point on the multiple symbols, the multiple second long training sequences include at least one pilot for phase tracking , and a first pilot for phase tracking and a second pilot for phase tracking occupy different time-frequency resources, where the at least one pilot for phase tracking included in the multiple first long training sequences includes the first pilot for phase tracking , and the at least one pilot for phase tracking included in the multiple second long training sequences includes the second pilot for phase tracking . By using the method for transmitting uplink information disclosed in the present invention, frequency offset parameters of stations can be determined.

摘要翻译： 本发明公开了一种MU-MIMO系统中的信息传输方法，站点和接入点。 该方法包括：第一站点确定多个待发送的第一长训练序列，其中，所述多个第一长训练序列包括至少一个用于相位跟踪的导频; 所述第一站点在多个符号上向所述接入点发送所述多个第一长训练序列，第二站点在所述多个符号上向所述接入点发送多个第二长训练序列，所述多个第二长训练序列至少包括 一个用于相位跟踪的导频，以及用于相位跟踪的第一导频和用于相位跟踪的第二导频占据不同的时间 - 频率资源，其中包括在多个第一长训练序列中的用于相位跟踪的至少一个导频包括用于相位的第一导频 跟踪，并且包括在多个第二长训练序列中的用于相位跟踪的至少一个导频包括用于相位跟踪的第二导频。 通过使用本发明公开的传输上行信息的方法，可以确定站点的频偏参数。

公开(公告)号：EP3065330A1

公开(公告)日：2016-09-07

申请号：EP14857075.7

申请日：2014-04-17

申请人： Huawei Technologies Co., Ltd.

发明人： WU, Tao ,  LU, Weishan

IPC分类号： H04L1/06

CPC分类号： H04L1/1825 ,  H04L1/1845

摘要： Provided are a data retransmission method and a communication device. The data retransmission method comprises: sending, by a transmitting end device, a first data set to a receiving end device using a first transmitting mode set; and retransmitting, by the transmitting end device, the first data set to the receiving end device using a second transmitting mode set, so that the receiving end device merges the first data set sent by the transmitting end device using the first transmitting mode set with the first data set retransmitted using the second transmitting mode set and demodulates the first data set, the transmitting modes in the first transmitting mode set and the transmitting modes in the second transmitting mode set being orthogonal in one-to-one correspondence or being quasi-orthogonal. The data retransmission method and communication device provided in the embodiments of the present invention are used for improving the performance of data retransmission.

摘要翻译： 提供了数据重发方法和通信装置。 数据重传方法包括：使用第一发送模式集，由发送终端装置将第一数据组发送到接收端装置; 并且由所述发送终端装置使用第二发送模式集合将所述第一数据组发送到所述接收端装置，使得所述接收端装置使用所述第一发送模式，将所述发送终端装置发送的所述第一数据集合 使用第二发送模式重发的第一数据集，并解调第一数据组，第一发送模式集合中的发送模式和第二发送模式集合中的发送模式一一对应地正交或者是正交正交 。 本发明实施例中提供的数据重发方法和通信装置用于提高数据重传的性能。