公开(公告)号：US11757497B2

公开(公告)日：2023-09-12

申请号：US17529575

申请日：2021-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yi Huang ,  Yuanjie Li

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04W72/0453 ,  H04W72/23

Abstract: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.

公开(公告)号：US11356233B2

公开(公告)日：2022-06-07

申请号：US16786129

申请日：2020-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengyue Dou ,  Ting Wang ,  Yi Huang ,  Yuanjie Li

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: This application provides an information transmission method and a communications apparatus. The method includes: receiving downlink control information DCI, where the DCI includes indication information, the indication information indicates at least one demodulation reference signal DMRS antenna port group and layer information of downlink data, the at least one DMRS antenna port group is one or more of a plurality of DMRS antenna port groups, and DMRS antenna ports in a same DMRS antenna port group satisfy a quasi co-location QCL relationship; and determining, based on the indication information, a DMRS antenna port occupied by the downlink data. According to embodiments of this application, a DMRS antenna port can be indicated when DMRS antenna ports are grouped.

公开(公告)号：US11296755B2

公开(公告)日：2022-04-05

申请号：US17033167

申请日：2020-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Huang ,  Huangping Jin ,  Huiying Zhu ,  Yuanjie Li ,  Xiaoyan Bi

IPC: H04B7/04 ,  H04B7/0456

Abstract: This application provides a communication method and a communications apparatus. The method includes: generating, by a terminal device, first indication information, where the first indication information is used to indicate a precoding matrix, the precoding matrix is applied to at least one antenna panel and includes at least one precoding vector, each precoding vector includes a plurality of subvectors, each subvector corresponds to an antenna port on the antenna panel and includes two polarization vectors, and each polarization vector is generated by performing weighted combination on a plurality of basis vectors; and sending the first indication information. In embodiments of this application, accuracy of a codebook can be improved.

公开(公告)号：US11218208B2

公开(公告)日：2022-01-04

申请号：US16797482

申请日：2020-02-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Huang ,  Haibao Ren ,  Yuanjie Li

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0417

Abstract: A CSI-RS measurement feedback method and device are provided to optimize analog and digital precoding. A network device sends S CSI-RSs to a terminal device. Each CSI-RS corresponds to one antenna port number. The terminal device sends M antenna port numbers that correspond to M CSI-RSs and sends a PMI that corresponds to a channel matrix H or the quantization result of a channel matrix H to the network device. The terminal device selects the M antenna port numbers that correspond to the M CSI-RSs from the S antenna port numbers that correspond to the S CSI-RSs, and feeds back the M antenna port numbers to the network device.

公开(公告)号：US11122572B2

公开(公告)日：2021-09-14

申请号：US16504010

申请日：2019-07-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liuliu Ji ,  Yi Huang ,  Yuanjie Li

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/0452

Abstract: In a signal transmission method, a user equipment receives a first signal from a wireless network device; and the user equipment determines spatial information of a to-be-transmitted second signal based on the first signal, and transmits the to-be-transmitted second signal by using the spatial information. An uplink transmit beam is determined by using related information of a downlink receive beam, so that the UE can efficiently determine spatial information of an uplink signal to be transmitted by the UE.

公开(公告)号：US11101948B2

公开(公告)日：2021-08-24

申请号：US16673265

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shengyue Dou ,  Ting Wang ,  Yuanjie Li ,  Yi Huang

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04W72/12

Abstract: This application provides a data transmission method, a terminal, and a network device. The method includes: receiving, by a terminal, first indication information and second indication information, where the first indication information is used to indicate at least one group of resources, the at least one group of resources corresponds to at least one group of antenna ports or at least one group of codewords, the second indication information is used to indicate the at least one group of codewords and QCL configuration information of the at least one group of antenna ports, or the second indication information is used to indicate the at least one group of antenna ports and QCL configuration information of the at least one group of antenna ports; and determining, by the terminal, the at least one group of resources based on the first indication information and the second indication information.

公开(公告)号：US11038644B2

公开(公告)日：2021-06-15

申请号：US16579413

申请日：2019-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibao Ren ,  Yi Huang ,  Longbao Wang ,  Yuanjie Li

IPC: H04L5/00 ,  H04B7/0413 ,  H04L1/00

Abstract: Embodiments of this application provide a data transmission method, a network device, and a terminal device. The method includes: determining, by a network device, demodulation reference signal DMRS port groups, where a quantity of the DMRS port groups is greater than or equal to 2; and further, communicating, by the network device, data with a terminal device, where the data is corresponding to a transport block, the transport block is divided into at least one code block group CBG, and each of the at least one CBG is corresponding to one DMRS port group and is mapped to a transport layer corresponding to the one DMRS port group.

公开(公告)号：US10904872B2

公开(公告)日：2021-01-26

申请号：US16221280

申请日：2018-12-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Na Deng ,  Ting Wang ,  Yi Huang ,  Yuanjie Li

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04W76/27 ,  H04L1/00

Abstract: This application relates to a downlink control information indication method during coordinated multipoint transmission/reception in a wireless communications system. For a plurality of network side devices that send downlink data to user equipment on a same carrier and in a same subframe, downlink data transmission information used when the network side devices separately send the downlink data is indicated by using a plurality of pieces of downlink control information. Therefore, diversity transmission and/or multi-stream transmission in a multipoint coordination scenario are/is supported, and when the user equipment cannot normally receive downlink data sent by some network side devices because some downlink control information encounters an error, the user equipment may still receive, based on an indication of remaining downlink control information that encounters no error, downlink data sent by a network side device corresponding to the remaining downlink control information that encounters no error.

公开(公告)号：US10819406B2

公开(公告)日：2020-10-27

申请号：US16369043

申请日：2019-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi Huang ,  Yuanjie Li ,  Haibao Ren ,  Liuliu Ji

IPC: H04B7/06 ,  H04B7/0456

Abstract: Embodiments of the present invention provide a method which includes: a terminal device is configured to send precoding matrix indicator information to a radio access network device, wherein the precoding matrix indicator information is used to indicate a precoding matrix in a codebook, and the codebook comprises information about a quantity of corresponding antenna panels and information about a phase difference between different corresponding antenna panels; and the terminal device receives downlink data from the radio access network device.

公开(公告)号：US20160302221A1

公开(公告)日：2016-10-13

申请号：US15190751

申请日：2016-06-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zongjie WANG ,  Peng Zhang ,  Yi Huang ,  Jingxing Chu ,  Ling Qiu

IPC: H04W72/12 ,  H04W72/04 ,  H04W16/32 ,  H04L5/00

CPC classification number: H04W72/1236 ,  H04L5/0057 ,  H04W16/32 ,  H04W72/0453 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244

Abstract: This application relates to a schedule weight adjustment method applied to a HSDPA Het-Net system. The method includes: acquiring, by a first base station, a first CQI, which is on a first carrier, of user equipment in a LPN expansion area, and a first TBS, which is on a second carrier, of the user equipment, where the first carrier is used to communicate with the first base station, the second carrier is used to communicate with a second base station, and a cell offset is set on the first carrier or the second carrier; determining, according to the first CQI and the first TBS, whether a service rate obtained from the second base station by the user equipment is greater than a service rate obtained from the first base station; and adjusting a schedule weight of the user equipment in the first base station according to the determining result.

Abstract translation: 本申请涉及应用于HSDPA Het-Net系统的调度权重调整方法。 该方法包括：由第一基站在用户设备中获取第一载波上的LPN扩展区域中的用户设备的第一CQI和第二载波上的第一TBS，其中， 第一载波用于与第一基站通信，第二载波用于与第二基站通信，并且在第一载波或第二载波上设置小区偏移; 根据第一CQI和第一TBS确定用户设备从第二基站获得的服务速率是否大于从第一基站获得的服务速率; 以及根据确定结果调整第一基站中的用户设备的调度权重。