公开(公告)号：US20170222855A1

公开(公告)日：2017-08-03

申请号：US15493675

申请日：2017-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Weishan Lu ,  Teyan Chen

IPC: H04L27/26 ,  H04B7/0452 ,  H04W72/04

CPC classification number: H04L27/2608 ,  H04B7/0452 ,  H04L27/26 ,  H04W72/0453

Abstract: Embodiments of the present application provide a signal processing method and apparatus, and a device. The embodiments relate to an MU-MIMO system. The signal processing apparatus includes: a signal obtaining module and a sending module. A signal includes N spatial flows, and the signal includes a training field, where the training field includes a first part and a second part. Sub-carriers of an OFDM symbol in the second part of the training field are divided into N training sub-carrier sets 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 each OFDM symbol in the second part of the training field. So that precision of the channel estimation is improved.

公开(公告)号：US09712314B2

公开(公告)日：2017-07-18

申请号：US14639731

申请日：2015-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu

IPC: H04L5/14 ,  H04B1/525 ,  H04B1/40 ,  H04B1/10

CPC classification number: H04L5/1461 ,  H04B1/1081 ,  H04B1/40 ,  H04B1/525

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for processing an interference signal, so as to eliminate an interference signal in a full duplex multi-antenna system. The method includes: receiving a radio signal, where the signal includes a self-interference signal of a transmit antenna, and the self-interference signal includes a first self-interference signal, and a second self-interference signal; performing primary interference cancellation processing, by using a first reference signal, on the received signal to eliminate the first self-interference signal; and performing secondary interference cancellation processing, by using a second reference signal, on the signal after the primary interference cancellation processing to eliminate the second self-interference signal.

公开(公告)号：US20170195107A1

公开(公告)日：2017-07-06

申请号：US15462129

申请日：2017-03-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu

IPC: H04L5/14 ,  H04W74/08 ,  H04W24/08 ,  H04B7/0452 ,  H04L27/26 ,  H04W72/12 ,  H04L5/00

CPC classification number: H04L5/14 ,  H04B7/0452 ,  H04L5/0055 ,  H04L27/2601 ,  H04W24/08 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/1289 ,  H04W74/0816 ,  H04W84/12

Abstract: A method includes: obtaining, by an access point (AP), use permission of a channel; determining, by the AP after obtaining the use permission of the channel, scheduling information for a station (STA) participating in full-duplex transmission, where the scheduling information includes information about a first station that performs uplink transmission on the channel and information about a second station that performs downlink transmission on the channel at the same time, or the scheduling information includes information about a third station that simultaneously performs uplink and downlink transmission on the channel; and sending, by the AP, a trigger frame, where the trigger frame includes the scheduling information.

公开(公告)号：US20170047964A1

公开(公告)日：2017-02-16

申请号：US15337407

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Teyan Chen ,  Hong Cheng

IPC: H04B1/525 ,  H04W56/00 ,  H04B5/02

CPC classification number: H04B1/525 ,  H04B5/02 ,  H04B15/00 ,  H04W56/0015 ,  H04W88/02 ,  H04W88/08

Abstract: A method for interference cancellation is provided. The method includes: determining, by a first base station, a channel parameter from a transmit antenna of a second base station to a receive antenna of the first base station; receiving, by the first base station, a first signal using a first resource, where the first signal includes: a first interference signal and an uplink wanted signal, and the first interference signal is an interference signal generated when a downlink second signal is sent by the second base station by using the first resource; receiving, by the first base station, reconstruction information that is of the second signal and that is sent by the second base station; and determining, by the first base station, the first interference signal in the first signal according to the channel parameter and the reconstruction information of the second signal, and canceling the first interference signal.

Abstract translation: 提供了一种用于干扰消除的方法。 该方法包括：由第一基站确定从第二基站的发射天线到第一基站的接收天线的信道参数; 由第一基站接收使用第一资源的第一信号，其中第一信号包括：第一干扰信号和上行链路有用信号，并且第一干扰信号是当下行链路第二信号被发送时产生的干扰信号 第二基站使用第一资源; 由第一基站接收第二信号并由第二基站发送的重构信息; 以及由所述第一基站根据所述信道参数和所述第二信号的重构信息确定所述第一信号中的所述第一干扰信号，以及抵消所述第一干扰信号。

公开(公告)号：US20170041165A1

公开(公告)日：2017-02-09

申请号：US15332483

申请日：2016-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong CHENG ,  Teyan Chen ,  Sheng Liu

IPC: H04L25/03 ,  H04L12/801 ,  H04L5/14

CPC classification number: H04L25/03159 ,  H04L1/00 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/14 ,  H04L5/1461 ,  H04L27/2601 ,  H04L47/29

Abstract: The embodiments of present disclosure provide a method for estimating a response of a baseband self-interference channel and an apparatus, where the method includes: estimating a response of a baseband self-interference channel to obtain a first estimation response of the baseband self-interference channel; starting to perform first full duplex communication; canceling baseband self-interference in a first baseband received signal according to the first estimation response, where the first baseband received signal is a baseband signal received during the first full duplex communication; determining a first parameter of the baseband self-interference channel; determining an estimation policy of the baseband self-interference channel according to the first parameter; and estimating the response of the baseband self-interference channel according to the estimation policy.

Abstract translation: 本公开的实施例提供了一种用于估计基带自干扰信道和装置的响应的方法，其中该方法包括：估计基带自干扰信道的响应以获得基带自干扰的第一估计响应 渠道; 开始执行第一次全双工通信; 根据第一估计响应在第一基带接收信号中消除基带自干扰，其中第一基带接收信号是在第一全双工通信期间接收的基带信号; 确定所述基带自干扰信道的第一参数; 根据第一参数确定基带自干扰信道的估计策略; 以及根据估计策略估计基带自干扰信道的响应。

公开(公告)号：US20170005773A1

公开(公告)日：2017-01-05

申请号：US15269313

申请日：2016-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Teyan Chen ,  Hong Cheng

IPC: H04L5/00

CPC classification number: H04L5/0073 ,  H04B1/525 ,  H04L5/005

Abstract: Embodiments of the present invention provide an apparatus for self-interference cancellation. The apparatus includes: a first splitter, configured to perform splitting processing on a local oscillator signal generated by a local oscillator to separately transmit the local oscillator signal to an up-converter and a delayer; the up-converter, configured to perform up-conversion processing on a baseband transmit signal according to the local oscillator signal to generate a transmit signal; the delayer, configured to perform delaying processing on the local oscillator signal according to a preset target delay; a first down-converter, configured to perform, based on the local oscillator signal obtained after the delaying processing, down-conversion processing on a receive signal to acquire a baseband receive signal, and transmit the baseband receive signal to a self-interference canceller; and the self-interference canceller, configured to perform self-interference cancellation processing on the baseband receive signal.

Abstract translation: 本发明的实施例提供了一种用于自干扰消除的装置。 该装置包括：第一分离器，被配置为对由本地振荡器产生的本地振荡器信号执行分离处理以将本地振荡器信号单独发送到上变频器和延迟器; 上变频器，被配置为根据本地振荡器信号对基带发送信号执行上变频处理，以产生发送信号; 延迟器，被配置为根据预设的目标延迟对本地振荡器信号执行延迟处理; 第一下变频器，被配置为基于在延迟处理之后获得的本地振荡器信号执行对接收信号的下变频处理以获取基带接收信号，并将基带接收信号发送到自干扰消除器; 以及所述自干扰消除器，被配置为对所述基带接收信号执行自干扰消除处理。

公开(公告)号：US20160141767A1

公开(公告)日：2016-05-19

申请号：US14979368

申请日：2015-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huiqing Zhai ,  Zhihui Ma ,  Zhenhua Li ,  Changhong Liang ,  Rongdao Yu ,  Sheng Liu

IPC: H01Q21/30 ,  H01Q1/38 ,  H01Q9/04

CPC classification number: H01Q21/30 ,  H01Q1/243 ,  H01Q1/38 ,  H01Q1/521 ,  H01Q5/364 ,  H01Q5/371 ,  H01Q9/04 ,  H01Q9/0421 ,  H01Q21/28

Abstract: A multiple-antenna system includes a planar inverted-F antenna PIFA of a first type, which includes a metallic ground plane, a dielectric plate, a radiation patch, a probe-type feeding unit, and a metallic shorting pin. The system also includes a PIFA of a second type perpendicular to the PIFA of the first type and including a metallic ground plane, a radiation patch, a feeding unit, and a metallic shorted patch. The radiation patch is connected to the metallic ground plane by using the feeding unit and the metallic shorted patch. Isolation stub is located on an edge of a side, close to the PIFA of the second type, of the upper surface of the dielectric plate of the PIFA of the first type.

Abstract translation: 多天线系统包括第一类型的平面倒F天线PIFA，其包括金属接地平面，电介质板，辐射贴片，探针型馈送单元和金属短路引脚。 该系统还包括垂直于第一类型的PIFA的第二类型的PIFA，并且包括金属接地平面，辐射贴片，馈送单元和金属短路贴片。 辐射贴片通过使用进给单元和金属短路贴片连接到金属接地平面。 隔离短截线位于第一类型的PIFA的电介质板的上表面的靠近第二类型的PIFA的边缘。

公开(公告)号：US09344169B2

公开(公告)日：2016-05-17

申请号：US14689402

申请日：2015-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Rui Wang ,  Rongdao Yu

IPC: H04B7/04 ,  H04B7/02 ,  H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04L1/00

Abstract: The present invention provides a signal transmission method, system, and device, where the method includes: setting K virtual users, where each virtual user is associated with one base station; obtaining base station precode and user precode corresponding to each of the K virtual users; splitting a baseband signal to the K virtual users, and obtaining a split baseband signal corresponding to each of the K virtual users; processing, according to the base station precode and the user precode corresponding to each virtual user, the split baseband signal corresponding to each virtual user, and obtaining an uplink signal corresponding to each virtual user; and obtaining timing advances {t1, t2, . . . , tK} of base stations corresponding to the K virtual users, and when max(t1, t2, . . . , tK)−min(t1, t2, . . . , tK)

Abstract translation: 本发明提供了一种信号传输方法，系统和装置，其中所述方法包括：设置每个虚拟用户与一个基站相关联的K个虚拟用户; 获取与每个K个虚拟用户对应的基站预编码和用户密码; 将基带信号分解给所述K个虚拟用户，以及获得与所述K个虚拟用户中的每一个相对应的分离基带信号; 根据与每个虚拟用户相对应的基站预编码和用户预编码，对应于每个虚拟用户的分离基带信号，并获得与每个虚拟用户对应的上行链路信号; 并获得定时提前{t1，t2，...。 。 。 ，tK}，当max（t1，t2，...，tK）-min（t1，t2，...，tK）

公开(公告)号：US09264917B2

公开(公告)日：2016-02-16

申请号：US13713562

申请日：2012-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sheng Liu ,  Rongdao Yu ,  Tao Wu

IPC: H04W4/00 ,  H04W24/02 ,  H04L1/00 ,  H04W72/12 ,  H04W36/18 ,  H04W52/40 ,  H04W24/10 ,  H04L5/00 ,  H04B7/02 ,  H04W48/20 ,  H04W74/00

CPC classification number: H04W24/02 ,  H04B7/024 ,  H04L1/0025 ,  H04L5/0037 ,  H04L5/0046 ,  H04L5/0073 ,  H04W24/10 ,  H04W36/18 ,  H04W48/20 ,  H04W52/40 ,  H04W72/08 ,  H04W72/1226 ,  H04W74/002

Abstract: Embodiments of the present invention disclose a wireless access method, device, and system. The method includes: sending pilot signal strength or channel characteristics to a central processing node, where the pilot signal strength or channel characteristics are fed back by a user terminal within the coverage area of a wireless access node and are between the wireless access node and the corresponding user terminal; receiving access indication information of the user terminal, which is fed back by the central processing node and is determined according to the pilot signal strength or channel characteristics, where the access indication information of the user terminal includes an identifier of the wireless access node connected with the user terminal and a corresponding coding and modulation scheme; and sending the identifier of the wireless access node connected with the user terminal and the corresponding coding and modulation scheme to the corresponding user terminal.

Abstract translation: 本发明的实施例公开了一种无线接入方法，设备和系统。 该方法包括：向中央处理节点发送导频信号强度或信道特性，其中导频信号强度或信道特性由无线接入节点的覆盖区域内的用户终端反馈，并且在无线接入节点与 相应的用户终端; 接收由中央处理节点反馈并根据导频信号强度或信道特性确定的用户终端的接入指示信息，其中用户终端的接入指示信息包括与无线接入节点连接的标识符 用户终端和相应的编码和调制方案; 并将与用户终端连接的无线接入节点的标识符和相应的编码和调制方案发送给相应的用户终端。

公开(公告)号：US20150172002A1

公开(公告)日：2015-06-18

申请号：US14561220

申请日：2014-12-05

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Rongdao Yu ,  Sheng Liu

IPC: H04L1/00

CPC classification number: H04L1/0054 ,  H04L1/005 ,  H04L1/0066 ,  H04L1/0076 ,  H04L1/0077 ,  H04L2001/0097

Abstract: The application provides a receiving method in cooperative communications. A signal-receiving node demodulates a first signal received from a local end to obtain a first log-likelihood ratio. The signal-receiving node further demodulates a second signal received from a relay node to obtain a second log-likelihood ratio. The second signal is a signal obtained by the relay node through network coding the first signal and a third signal received from a peer end. The signal-receiving node calculates a prior log-likelihood ratio according to the first log-likelihood ratio and the second log-likelihood ratio, and decodes the second signal by using the prior log-likelihood ratio to obtain the third signal.

Abstract translation: 该应用程序提供了一种合作通信中的接收方法。 信号接收节点解调从本端接收到的第一信号以获得第一对数似然比。 信号接收节点进一步解调从中继节点接收的第二信号，以获得第二对数似然比。 第二信号是由中继节点通过对第一信号进行网络编码而获得的信号和从对端接收到的第三信号。 信号接收节点根据第一对数似然比和第二对数似然比计算先验对数似然比，并且通过使用先前的对数似然比对第二信号进行解码以获得第三信号。