公开(公告)号：US20220224466A1

公开(公告)日：2022-07-14

申请号：US17707235

申请日：2022-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liuliu JI ,  Haicun HANG ,  Hongzhe SHI ,  Xiang REN ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W52/36 ,  H04W52/14 ,  H04W16/14

Abstract: Embodiments of this application provide an uplink transmission method and apparatus, a computer-readable storage medium, a computer program product, and the like, to implement intra-frequency uplink transmission by a terminal device. The method includes: determining a plurality of serving cells, where the plurality of serving cells have at least one of the following association relationships: operating frequency bands are completely the same, or the operating frequency bands are partially the same; and sending uplink signals to the plurality of serving cells, where the sending of the uplink signal meets a preset condition.

公开(公告)号：US20220014241A1

公开(公告)日：2022-01-13

申请号：US17483419

申请日：2021-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohan WANG ,  Huangping JIN ,  Xiang REN ,  Wei HAN ,  Xiaoyan BI

IPC: H04B7/0456 ,  H04L25/02

Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by performing weighted combination on a plurality of space-frequency component matrices, where the space-frequency matrix is an M×N-dimensional space-frequency vector or an X×Y space-frequency matrix, X and Y are one and the other of M and N, M≥1, N≥2, and both M and N are integers.

公开(公告)号：US20200374017A1

公开(公告)日：2020-11-26

申请号：US16988123

申请日：2020-08-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengyue DOU ,  Ting WANG ,  Yuanjie LI ,  Xiang REN

IPC: H04B17/27 ,  H04B17/10 ,  H04J13/00

Abstract: An embodiment of this application provides an antenna port determining method. In a process of determining, based on QCL information and indication information that is used to determine an antenna port number, an antenna port on which downlink data is scheduled, antenna port group information is further introduced, so that the antenna port can be more accurately determined.

公开(公告)号：US20190342062A1

公开(公告)日：2019-11-07

申请号：US16517198

申请日：2019-07-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang REN ,  Yong LIU ,  Lu RONG

IPC: H04L5/10 ,  H04L5/00 ,  H04L5/02 ,  H04W76/27

Abstract: A demodulation reference signal (DMRS) indicating method, a DMRS receiving method, and an apparatus are described. A transmit end determines, from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme. The transmit end obtains DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRSs configuration information. The transmit end sends the DMRS indication information. The described method and the apparatus are implemented to match a plurality of New Radio (NR) scenarios. The described operations can satisfy a requirement for transmitting more layers of data and reduce indication overheads.

公开(公告)号：US20250038910A1

公开(公告)日：2025-01-30

申请号：US18794748

申请日：2024-08-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Yong LIU ,  Shibin GE ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/0446 ,  H04W76/27

Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: receiving, by the terminal device, the first indication information, and determining time domain positions of demodulation reference signals (DMRSs) based on the mapping type of the physical shared channel and with reference to a position index of the last symbol occupied by the physical shared channel or a quantity of symbols occupied by the physical shared channel in the resource unit, where the position index of the last symbol occupied by the physical shared channel in the resource unit corresponds to the first type, and the quantity of symbols occupied by the physical shared channel in the resource unit corresponds to the second type.

公开(公告)号：US20220224480A1

公开(公告)日：2022-07-14

申请号：US17708437

申请日：2022-03-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Yong LIU ,  Shibin GE ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/04

Abstract: This application provides one or more resource indication methods, terminal devices, and network devices. An example method includes: receiving, by the terminal device, the first indication information, and determining time domain positions of a demodulation reference signal (DMRS) based on the mapping type of the physical shared channel and with reference to a position index of the last symbol occupied by the physical shared channel or a quantity of symbols occupied by the physical shared channel in the resource unit. The position index of the last symbol occupied by the physical shared channel in the resource unit corresponds to the first type, and the quantity of symbols occupied by the physical shared channel in the resource unit corresponds to the second type.

公开(公告)号：US20220217567A1

公开(公告)日：2022-07-07

申请号：US17706385

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Huangping JIN ,  Shibin GE ,  Xiaohan WANG ,  Xiaoyan BI

IPC: H04W24/10 ,  H04B7/06

Abstract: The disclosure provides channel measurement methods and communications apparatuses. One example method includes a terminal device that generates first indication information, and sends the first indication information to a network device. The first indication information indicates one or more component characteristics of a complete time-varying characteristic of a channel and a weighting coefficient of each component characteristic. The complete time-varying characteristic of the channel corresponds to a local time-varying characteristic of the channel. The local time-varying characteristic may be determined by the terminal device based on reference signals received for a plurality of times, and the complete time-varying characteristic may be determined based on the local time-varying characteristic.

公开(公告)号：US20200336275A1

公开(公告)日：2020-10-22

申请号：US16917139

申请日：2020-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Yong LIU ,  Lu RONG

IPC: H04L5/10 ,  H04W76/27 ,  H04L5/00 ,  H04L5/02

Abstract: This application discloses a DMRS indicating method, a DMRS receiving method, and an apparatus. The method includes: determining, by a transmit end from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme, and obtaining DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRS configuration information; and sending, by the transmit end, the DMRS indication information. The method and the apparatus provided in this application are implemented to match a plurality of scenarios in NR. This can satisfy a requirement for transmitting more layers of data, and can further reduce indication overheads.

公开(公告)号：US20200007303A1

公开(公告)日：2020-01-02

申请号：US16566362

申请日：2019-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang REN ,  Yong LIU ,  Shibin GE ,  Xiaoyan BI

IPC: H04L5/10 ,  H04L5/00 ,  H04L5/02

Abstract: Embodiments of this application disclose a method and an apparatus for transmitting a DMRS, and relate to the field of communications technologies. The method and the apparatus are applicable to an NR system. The method for transmitting a DMRS may include: determining a time-frequency resource used to carry a DMRS; and then sending the DMRS by using the time-frequency resource.

公开(公告)号：US20190288816A1

公开(公告)日：2019-09-19

申请号：US16432525

申请日：2019-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang REN ,  Yong LIU ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/04

Abstract: A data transmission method includes: selecting, by a network device, at least one target time domain resource from a plurality of candidate time domain resources, where the at least one target time domain resource is used to carry a demodulation reference signal (DMRS); and sending, by the network device, first indication information to a terminal device, where the first indication information is used to indicate the at least one target time domain resource.