公开(公告)号：US20190149301A1

公开(公告)日：2019-05-16

申请号：US16242787

申请日：2019-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong LIU ,  Lu WU ,  Xiaoyan BI

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/02

Abstract: Embodiments of present invention disclose a reference signal sending method. The method includes: determining a time-frequency resource occupied by a reference signal of at least one antenna port in a transmission unit, the transmission unit includes a first part and a second part, any symbol in the first part is different from any symbol in the second part, the time-frequency resource is on a single symbol or a plurality of consecutive symbols within the first part, reference signals of each antenna port occupy a same symbol, and the single symbol or each of the plurality of consecutive symbols carries a reference signal of at least one antenna port; and sending the reference signal to user equipment on the time-frequency resource. In the embodiments of present invention, a reference signal mapping rule and an antenna port mapping solution that are applicable to an NR MIMO system are formulated.

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：US20230019951A1

公开(公告)日：2023-01-19

申请号：US17947396

申请日：2022-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Changliang LIAO ,  Ding ZHONG ,  Tao HUANG ,  Yong LIU ,  Yangming LIN

IPC: H04M1/02

Abstract: A rotating shaft mechanism (10) is provided, including a main bracket (1) and at least one rotating assembly (2). Each rotating assembly can rotate relative to the main bracket. The rotating assembly includes a rotating member (21), a middle frame (22), and a sliding member (23). The rotating member can be rotatably connected to the main bracket about the first rotation center, and the other end of the rotating member can be rotatably connected to the middle frame about the third rotation center. One end of the sliding member is hinged to the main bracket, and the sliding member can rotate relative to the main bracket about the second rotation center. The other end of the sliding member slidably coordinates with the middle frame, so that the middle frame is away from or close to the second rotation center along an extension direction of the sliding member.

公开(公告)号：US20220416965A1

公开(公告)日：2022-12-29

申请号：US17902573

申请日：2022-09-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong LIU ,  Lu RONG ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0456 ,  H04L27/26 ,  H04B7/06

Abstract: Embodiments of this application disclose a resource configuration method and a device. The method includes: generating, by a transmit end device, configuration information, where the configuration information is used to indicate at least one resource bundling size, the resource bundling size belongs to a resource bundling size set, and the resource bundling size set corresponds to at least one system configuration parameter; and sending, by the transmit end device, the configuration information.

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：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：US20200322005A1

公开(公告)日：2020-10-08

申请号：US16904148

申请日：2020-06-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyuan ZHANG ,  Raja BANERJEA ,  Yong LIU ,  Mao YU

IPC: H04B7/0452 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04B7/0413 ,  H04W84/12

Abstract: A first field of a preamble includes a plurality of indications of respective numbers of spatial or space-time streams for respective receivers to enable each receiver among the multiple receivers to determine a respective set of one or more training sequences, in a plurality of training sequences, that corresponds to the receiver. A second field of the preamble includes respective modulation and coding scheme information for the respective receivers. The preamble is generated such that i) the first field is transmitted prior to the plurality of training sequences, and ii) the second field of the preamble is transmitted after the plurality of training sequences are transmitted. A data portion of the multi-user data unit is generated using respective modulation and coding schemes for the respective receivers. Thee multi-user data unit is transmitted such that data for the respective receivers are transmitted via respective sets of one or more spatial or space-time streams.

公开(公告)号：US20200313821A1

公开(公告)日：2020-10-01

申请号：US16900516

申请日：2020-06-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lu WU ,  Yong LIU

IPC: H04L5/00 ,  H04W76/27 ,  H04J11/00 ,  H04L27/26

Abstract: A reference signal sending or receiving method includes: determining, by the network device, a plurality of resource elements REs used to carry a first CSI-RS, where the plurality of REs are distributed in a plurality of resource units, and in each resource unit, a plurality of REs used to carry the first CSI-RS are located on a plurality of subcarriers in a same symbol, values of the first CSI-RS carried on at least two REs are different, and values of the first CSI-RS are loaded to the plurality of REs in the resource unit by using a first multiplex code; and sending, by the network device, the first CSI-RS to the terminal device by using the plurality of REs.

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.