公开(公告)号：US20150171942A1

公开(公告)日：2015-06-18

申请号：US14585765

申请日：2014-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongshu YI ,  Jing YANG ,  Lu GUAN

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04B7/0413 ,  H04B7/0697 ,  H04L5/0048

Abstract: Disclosed are a method, device and system for transmitting a Multi-user Multiple-Input-Multiple-Output (MU-MIMO) pilot and data. The method includes: when at least two terminals transmit a MU-MIMO pilot and data on one same time/frequency resource, constructing a k-stream SU-MIMO pilot and data; based on the configuration mode of the k-stream SU-MIMO pilot, modifying demodulation pilot port parameters of the at least two terminals; and based on the transmission mode of the k-stream SU-MIMO pilot and data, transmitting the k-stream SU-MIMO pilot and data to the at least two terminals, respectively. Further disclosed are a device and system for transmitting a MU-MIMO pilot and data

Abstract translation: 公开了用于发送多用户多输入多输出（MU-MIMO）导频和数据的方法，装置和系统。 该方法包括：当至少两个终端在同一时间/频率资源上发送MU-MIMO导频和数据时，构建k流SU-MIMO导频和数据; 基于所述k流SU-MIMO导频的配置模式，修改所述至少两个终端的解调导频端口参数; 并且基于k流SU-MIMO导频和数据的传输模式，分别向至少两个终端发送k流SU-MIMO导频和数据。 进一步公开的是用于发送MU-MIMO导频和数据的装置和系统

公开(公告)号：US20170187428A1

公开(公告)日：2017-06-29

申请号：US15455238

申请日：2017-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu GUAN ,  Xiongshu Yi

IPC: H04B7/024 ,  H04L5/00 ,  H04W4/06 ,  H04W72/04

CPC classification number: H04B7/024 ,  H04L5/0048 ,  H04W4/06 ,  H04W72/04 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/0446

Abstract: Embodiments of the present application disclose a CoMP JT communication method, used to implement CoMP JT communication in communication of LTE R9 and an earlier release. The method in the embodiments of the present application includes: configuring, by a serving base station, a JT serving subframe; sending, by the serving base station, coordination information to a coordinated base station, so that the coordinated base station configures a JT coordinated subframe according to the coordination information; and when UE in a serving cell needs to perform CoMP JT communication, sending, by the serving base station, the JT serving subframe to the UE in the serving cell to provide a CoMP JT communication service for the UE in the serving cell. The embodiments of the present application further provide a related base station.

公开(公告)号：US20160197745A1

公开(公告)日：2016-07-07

申请号：US15068502

申请日：2016-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongshu YI ,  Chaochao ZHANG ,  Lu GUAN ,  Yun LIU

IPC: H04L25/02 ,  H04L5/12 ,  H04J11/00 ,  H04W72/04 ,  H04W16/18 ,  H04B7/04

CPC classification number: H04L25/0204 ,  H04B7/0413 ,  H04J11/00 ,  H04L5/12 ,  H04L25/0224 ,  H04L25/03343 ,  H04W16/18 ,  H04W72/042 ,  H04W88/02

Abstract: The present disclosure relates to a remote radio unit (RRU), which is connected to a baseband unit (BBU) and an antenna, comprising: a service transmit channel configured to transmit a first correction signal through the antenna, and a standing wave detecting circuit associated with the service transmit channel, wherein: a working frequency of the standing wave detecting circuit is consistent with the service transmit channel, and the standing wave detecting circuit is capable of detecting a standing wave ratio of the service transmit channel and is configured to receive a correction signal looped back by the antenna, and send the correction signal looped back by the antenna to the BBU, wherein the correction signal looped back by the antenna comprises a portion of the first correction signal reflected by the antenna and is used for a calculation of a correction coefficient of the service transmit channel.

Abstract translation: 本发明涉及连接到基带单元（BBU）和天线的远程无线单元（RRU），包括：被配置为通过天线发送第一校正信号的服务发射信道，以及驻波检测电路 与所述服务发送信道相关联，其中：所述驻波检测电路的工作频率与所述业务发送信道一致，所述驻波检测电路能够检测所述业务发送信道的驻波比，并且被配置为接收 由天线环回的校正信号，并将由天线回送的校正信号发送到BBU，其中由天线回送的校正信号包括由天线反射的第一校正信号的一部分，并用于计算 的服务发送信道的校正系数。

公开(公告)号：US20150200740A1

公开(公告)日：2015-07-16

申请号：US14669935

申请日：2015-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongshu YI ,  Lu GUAN

IPC: H04J11/00 ,  H04L5/00

CPC classification number: H04J11/0053 ,  H04B7/022 ,  H04B17/11 ,  H04L5/0035 ,  H04L5/006 ,  H04L25/0224 ,  H04W88/085

Abstract: According to the present invention, a first self-correction coefficient and a second self-correction coefficient are acquired by performing a self-correction to an RRU0 and an RRU1 respectively, then a first compensation coefficient and a second compensation coefficient are acquired through transmitting and receiving correction signals to or from each other via any antenna of the RRU0 and any antenna of the RRU1, a first correction coefficient and a second correction coefficient are acquired according to the first self-correction coefficient, the first compensation coefficient, the second self-correction coefficient and the second compensation coefficient, and channel compensation is performed to the RRU0 and the RRU1 respectively, thus the joint channel correction among multiple RRUs are realized.

Abstract translation: 根据本发明，通过分别对RRU0和RRU1执行自校正来获取第一自校正系数和第二自校正系数，然后通过发送和获取第一补偿系数和第二补偿系数， 通过RRU0的任何天线和RRU1的任何天线彼此接收校正信号，根据第一自校正系数，第一补偿系数，第二自校正系数获得第一校正系数和第二校正系数， 校正系数和第二补偿系数，并且分别对RRU0和RRU1进行信道补偿，从而实现多个RRU之间的联合信道校正。

公开(公告)号：US20140314011A1

公开(公告)日：2014-10-23

申请号：US14302765

申请日：2014-06-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lu GUAN ,  Ke SUN

IPC: H04B7/02 ,  H04L5/00

CPC classification number: H04B7/024 ,  H04L5/0048

Abstract: A method and base station for transmitting a signal, including: generating n pieces of coordination information respectively corresponding to n coordinated base stations, where each piece of coordination information includes a cell identity CELL ID of a serving base station, a scrambling identity SCID of a user equipment UE, and information about a port number used by a corresponding coordinated base station, and the port number used by the coordinated base station is different from a port number used by the serving base station, and n is a positive integer; and respectively sending the n pieces of coordination information to the n coordinated base stations. These embodiments enable the coordinated base station to transmit a signal according to the coordination information of the serving base station, and require no transmit antenna calibration between RRUs of different cells, thereby avoiding the impact of transmit antenna calibration on CoMP JT performance.

Abstract translation: 一种用于发送信号的方法和基站，包括：生成分别对应于n个协调基站的n个协调信息，其中每个协调信息包括服务基站的小区标识小区ID，服务基站的加扰身份SCID 用户设备UE和相应协调基站使用的端口号的信息，协调基站使用的端口号与服务基站使用的端口号不同，n为正整数; 并分别向n个协调基站发送n个协调信息。 这些实施例使得协调基站能够根据服务基站的协调信息发送信号，并且不需要在不同小区的RRU之间进行发射天线校准，从而避免发射天线校准对CoMP JT性能的影响。