公开(公告)号：US10075260B2

公开(公告)日：2018-09-11

申请号：US14857616

申请日：2015-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Lv ,  Xiang Wang

IPC: H04J3/10 ,  H04L1/00 ,  H04W52/34 ,  H04B3/06 ,  H04B3/32 ,  H04L25/03 ,  H04M11/06

CPC classification number: H04L1/0001 ,  H04B3/06 ,  H04B3/32 ,  H04L25/03006 ,  H04M11/062 ,  H04W52/346

Abstract: The present invention discloses a power control method, apparatus, and system. A vectoring control entity acquires a power control factor Diik of an ith transmit end on a kth subcarrier, where the ith transmit end is one transceiver of M transceivers located at a central office end, 1≤k≤K, and K indicates a quantity of subcarriers; and sends the power control factor Diik to the ith transmit end, so that if it is determined, according to the power control factor Diik, that the power control factor Diik is less than a power gain factor gik, of a current transmit signal of the ith transmit end, on the kth subcarrier, the ith transmit end modifies the power gain factor gik of the current transmit signal, so that a modified power gain factor g′ik is less than or equal to the power control factor Diik.

公开(公告)号：US20180227013A1

公开(公告)日：2018-08-09

申请号：US15945484

申请日：2018-04-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Lv ,  Xiang Wang

IPC: H04B3/32 ,  H04M11/06 ,  H04L12/64 ,  H04B3/487

CPC classification number: H04B3/32 ,  H04B3/487 ,  H04L12/64 ,  H04L12/6418 ,  H04M11/062

Abstract: A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.

公开(公告)号：US10044407B2

公开(公告)日：2018-08-07

申请号：US14973965

申请日：2015-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Wang ,  Yixian Liu ,  Jianhua Liu

IPC: H04M9/08 ,  H04B3/32 ,  H04M11/06

Abstract: Embodiments of the present invention provide a line initialization method, a device, and a system. The method includes: when a new line is added, releasing at least one resource unit that is on a line at a Showtime stage, so that on the line at the Showtime stage data is transmitted on a remaining resource unit that is obtained after the at least one resource unit is released; performing basic initialization on the new line by using the at least one resource unit or a subset of the at least one resource unit, so that after the basic initialization, data can be transmitted on the new line by using the at least one resource unit or the subset of the at least one resource unit; and performing crosstalk cancellation initialization on the line at the Showtime stage and the new line by using all resource units.

公开(公告)号：US09985741B2

公开(公告)日：2018-05-29

申请号：US14855306

申请日：2015-09-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Wang ,  Weiyang Wang

IPC: H04M9/08 ,  H04L1/00 ,  H04B3/32 ,  H04M11/06

CPC classification number: H04L1/0009 ,  H04B3/32 ,  H04L1/0033 ,  H04M11/06

Abstract: The present invention discloses a method for adjusting parameters of a sending device and a receiving device, and a terminal device. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.

公开(公告)号：US09813112B2

公开(公告)日：2017-11-07

申请号：US14928567

申请日：2015-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Lv ,  Xiang Wang

IPC: H04B3/487 ,  H04L5/00 ,  H04B3/32 ,  H04L27/26

CPC classification number: H04B3/487 ,  H04B3/32 ,  H04L5/0042 ,  H04L5/0085 ,  H04L27/2601

Abstract: Embodiments of the present invention provide a power control method, device, and system, and relate to the field of communications technologies. The method is applied to a vectoring system, where the vectoring system includes multiple lines, each line includes multiple subcarriers, and for each subcarrier, a crosstalk channel is formed between the multiple lines, and the method includes: obtaining a closed subcarrier set of the multiple lines according to line crosstalk channel information corresponding to each subcarrier of the multiple subcarriers, where the closed subcarrier set includes a subcarrier set required to be closed on the multiple lines; and sending the closed subcarrier set of the multiple lines to a transceiver, and closing, by the transceiver, a transmit signal on a subcarrier required to be closed on each line.

公开(公告)号：US20150295621A1

公开(公告)日：2015-10-15

申请号：US14747100

申请日：2015-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Wang

IPC: H04B3/32 ,  H04L25/03 ,  H04M11/06

CPC classification number: H04B3/32 ,  H04L25/03898 ,  H04L27/2613 ,  H04L27/2634 ,  H04M3/306 ,  H04M3/34 ,  H04M11/062

Abstract: The present invention provides a method and a device for line initialization. In the method, first, a first precoding matrix needed by a first part of subcarriers is acquired in a downstream direction, and then multiple data signals of all data signals that need to be sent in an initialization process are sent by using only the first part of subcarriers; afterward, a second precoding matrix needed by at least a second part of subcarriers of all available subcarriers is acquired, and remaining data signals of all the data signals exclusive of the multiple data signals are sent by using the at least second part of subcarriers to complete line initialization. By using the foregoing manner, the present invention can cancel crosstalk between lines while completing line initialization, and does not easily cause transmit power to exceed a limit.

Abstract translation: 本发明提供一种用于线路初始化的方法和装置。 在该方法中，首先，在下游方向获取第一部分子载波所需的第一预编码矩阵，然后仅通过使用第一部分来发送在初始化处理中需要发送的所有数据信号的多个数据信号 的副载波; 之后，获取所有可用子载波的至少第二部分子载波所需的第二预编码矩阵，并且通过使用至少第二部分子载波来发送除多数据信号之外的所有数据信号的剩余数据信号以完成 行初始化。 通过使用上述方式，本发明可以在完成线路初始化的同时消除线路之间的串扰，并且不容易使发射功率超过极限。