公开(公告)号：US10887855B2

公开(公告)日：2021-01-05

申请号：US16359601

申请日：2019-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Liu ,  Jun Luo ,  Yinggang Du ,  Hongzhe Shi

IPC: H04J3/06 ,  H04W56/00 ,  H04W74/08 ,  H04W72/04 ,  H04L1/06 ,  H04J11/00 ,  H04W16/28

Abstract: Embodiments of this application provide a synchronization processing method and apparatus, and a device. The method includes: sending, by a network device, a first synchronization signal and a second synchronization signal to a terminal device within a first time unit, where frequencies of first synchronization signals in all beams are the same, and each beam has a different difference between the frequency of the first synchronization signal and a frequency of the second synchronization signal; and determining, by the terminal device, an optimal transmit beam of the network device for the terminal device and a time sequence of the optimal transmit beam based on the first synchronization signal and the second synchronization signal. This method effectively reducing synchronization detection complexity of the terminal device.

公开(公告)号：US20200099467A1

公开(公告)日：2020-03-26

申请号：US16695216

申请日：2019-11-26

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jian Wang ,  Lingchen Huang ,  Yunfei Qiao ,  Rong Li ,  Jun Wang ,  Yinggang Du ,  Yiqun Ge

IPC: H04L1/00

Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.

公开(公告)号：US10454628B2

公开(公告)日：2019-10-22

申请号：US15625803

申请日：2017-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Petteri Kela ,  Yinggang Du ,  Johan Christer Qvarfordt

IPC: H04L1/18

Abstract: A transmitter, a receiver and a method for communicating data packets. The method comprises receiving a data packet and determining if it is a re- or new transmission; and, when it is a retransmission: combining the received data packet with oldest unsuccessfully decoded data packet stored in a second memory, and decoding the combined data packet; when it is a new transmission: decoding the received data packet; checking if the decoding is successful; deleting the oldest stored data packet in the first memory; storing the decoded data packet in the first memory when the decoding is successful or storing the decoded data packet in the second memory when the decoding is not successful; and transmitting feed-back information to the transmitter.

公开(公告)号：US20190319762A1

公开(公告)日：2019-10-17

申请号：US16451728

申请日：2019-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Zhang ,  Xiuqiang Xu ,  Yan Chen ,  Yiqun Wu ,  Yinggang Du

IPC: H04L5/00 ,  H04W72/12

Abstract: A grant-free transmission method, a terminal, and a network device, the method including after determining a grant-free transmission pilot and a sending attribute parameter group, mapping, by a terminal, a pilot sequence to a corresponding location on a grant-free transmission resource block unit based on a relationship between a time-frequency resource location of a pilot and the sending attribute parameter group, and mapping data to another location on the grant-free transmission resource block unit.

公开(公告)号：US20190166609A1

公开(公告)日：2019-05-30

申请号：US16262611

申请日：2019-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuqiang Xu ,  Yan Chen ,  Yinggang Du

IPC: H04W72/12 ,  H04W72/14

Abstract: A data transmission method, a terminal, and a network device are provided, to improve reliability of data transmission performed by a terminal in a grant-free mode. In embodiments of the present invention, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode. In this way, reliability of data transmission is improved and a success rate of data transmission is improved to a relatively great extent.

公开(公告)号：US20180212812A1

公开(公告)日：2018-07-26

申请号：US15928033

申请日：2018-03-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fan Wang ,  Fredrik Berggren ,  Yinggang Du

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2662 ,  H04L5/0053 ,  H04W56/0005

Abstract: Processor configured to map at least two synchronisation signal sequences to a respective set of resource elements of an OFDM symbol, wherein there is at least one resource element between each pair of adjacent sets of resource elements.

公开(公告)号：US20170288820A1

公开(公告)日：2017-10-05

申请号：US15625803

申请日：2017-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Petteri Kela ,  Yinggang Du ,  Johan Christer Qvarfordt

IPC: H04L1/18

CPC classification number: H04L1/1845 ,  H04L1/1848 ,  H04L1/1874 ,  H04L1/1887

Abstract: A transmitter (110), a receiver (120) and a method (700) for communicating data packets. The method (700) comprises receiving (701) a data packet and determining (702) if it is a re- or new transmission; and, when it is a retransmission: combining (703) the received (701) data packet with oldest unsuccessfully decoded data packet stored in a second memory (850), and decoding (704) the combined (703) data packet; when it is a new transmission: decoding (704) the received (701) data packet; checking (705) if the decoding (704) is successful; deleting (706) the oldest stored data packet in the first memory (840); storing (707) the decoded (704) data packet in the first memory (840) when the decoding (704) is successful or storing (707) the decoded (704) data packet in the second memory (850) when the decoding (704) is not successful; and transmitting (708) feed-back information to the transmitter (110).

公开(公告)号：US09504048B2

公开(公告)日：2016-11-22

申请号：US14577328

申请日：2014-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hong Cheng ,  Rui Wang ,  Yinggang Du

IPC: H04W72/08 ,  H04L5/00 ,  H04L5/14 ,  H04L25/02

CPC classification number: H04W72/082 ,  H04L5/0048 ,  H04L5/143 ,  H04L25/022 ,  H04L25/0232

Abstract: Provided are a method and apparatus for acquiring channel responses of a self-interference channel and a full-duplex communication device. The method comprises: obtaining an estimate value of a channel response of the self-interfering channel by employing multiple reference signals to perform a channel estimation on the self-interfering channel; determining a stable range of each channel frequency-domain response on the basis of the channel response estimated value; randomly selecting a frequency point within the stable range of each channel frequency-domain response or selecting a frequency point of a greater channel response to serve as an emission frequency point of the reference signals, and, when an interrelation of the channel responses on the emission frequency point and on a non-emission frequency point is acquired, acquiring all the channel responses on time-domain and frequency-domain on the basis of a reception signal corresponding to the reference signals on the emission frequency point.

Abstract translation: 提供了一种用于获取自干扰信道和全双工通信设备的信道响应的方法和装置。 该方法包括：通过采用多个参考信号来获得自干扰信道的信道响应的估计值，以在自干扰信道上执行信道估计; 基于信道响应估计值确定每个信道频域响应的稳定范围; 在每个信道频域响应的稳定范围内随机选择一个频率点，或选择较大信道响应的频点作为参考信号的发射频率点，并且当发射信道响应的相关性 获取频率点和非发射频率点，基于与发射频率点上的参考信号对应的接收信号，在时域和频域获取所有信道响应。

公开(公告)号：US09215651B2

公开(公告)日：2015-12-15

申请号：US13683710

申请日：2012-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu Rong ,  Yinggang Du ,  Jianjun Wu ,  Yungang Li

IPC: H04W48/20 ,  H04W84/04

CPC classification number: H04W48/20 ,  H04W84/045

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for selecting serving nodes for access, where the method includes: obtaining reference signal received parameters of at least two nodes; selecting a downlink serving node from the at least two nodes according to the reference signal received parameter of each node; and sending an uplink signal, so that the downlink serving node selects an uplink serving node from the at least two nodes according to the uplink signal; or, selecting an uplink serving node from the at least two nodes according to the reference signal received parameter of each node, and sending an uplink signal. In the embodiments of the present invention, a user equipment selects a downlink serving node from at least two nodes according to the reference signal received parameter of each node; then the user equipment sends an uplink signal.

Abstract translation: 本发明的实施例提供一种用于选择用于访问的服务节点的方法，装置和系统，其中所述方法包括：获得至少两个节点的参考信号接收参数; 根据每个节点的参考信号接收参数，从至少两个节点选择下行链路服务节点; 并发送上行链路信号，使得所述下行链路服务节点根据所述上行链路信号从所述至少两个节点选择上行链路服务节点; 或者根据每个节点的参考信号接收参数从所述至少两个节点选择上行链路服务节点，并发送上行链路信号。 在本发明的实施例中，用户设备根据每个节点的参考信号接收参数从至少两个节点选择下行链路服务节点; 则用户设备发送上行链路信号。

公开(公告)号：US20150055515A1

公开(公告)日：2015-02-26

申请号：US14529502

申请日：2014-10-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hong Cheng ,  Sheng Liu ,  Yinggang Du ,  Rui Wang

IPC: H04L5/00 ,  H04L5/14

CPC classification number: H04L5/0062 ,  H04L5/0007 ,  H04L5/0073 ,  H04L5/14 ,  H04W72/082

Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.

Abstract translation: 本发明提供一种处理全双工干扰的方法和装置。 一种方法包括：获取当站点设备与至少两个UE进行全双工传输时引起的干扰程度; 以及根据所述干扰度确定允许在所述至少两个UE中的相同时间和频率资源上发送上行链路和下行链路信号的UE。 在本发明的实施例中，允许在相同时间和频率资源上发送上行链路和下行链路信号的UE可以根据当站点设备与至少两个UE进行全双工传输时引起的干扰程度进行分类，从而 尽可能地防止点对多点全双工通信情况下的干扰问题。