公开(公告)号：US20220006507A1

公开(公告)日：2022-01-06

申请号：US17479404

申请日：2021-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng GUAN ,  Xi ZHANG ,  Leiming ZHANG

IPC: H04B7/06 ,  H04W68/00 ,  H04W68/12

Abstract: This application provides example communication methods and example communications devices. One example method includes sending, by a terminal device, a notification message, where the notification message is used to notify a network device of information about a first radiation intensity of the terminal device when the terminal device uses at least one of a first beam or a first antenna panel. The terminal device can then send data by using at least one of a second beam or a second antenna panel, where a second radiation intensity of the terminal device when the terminal device sends the data by using the at least one of the second beam or the second antenna panel is less than the first radiation intensity of the terminal device.

公开(公告)号：US20210266208A1

公开(公告)日：2021-08-26

申请号：US17318644

申请日：2021-05-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Mingxin GONG ,  Leiming ZHANG

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/10

Abstract: This application discloses a sequence generating method and apparatus, and relates to the field of communications technologies, to resolve a problem that a PAPR of a DMRS symbol is higher than that of a data symbol. An initialization factor of a first sequence is obtained, where the initialization factor is associated with a first parameter; and the first sequence is generated based on the initialization factor. In addition, the first parameter is a port number, or the first parameter is a code division multiplexing CDM group identity.

公开(公告)号：US20200059334A1

公开(公告)日：2020-02-20

申请号：US16665875

申请日：2019-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong LIU ,  Xiaoyan BI ,  Leiming ZHANG

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W76/27

Abstract: Embodiments of this application disclose a parameter configuration method and apparatus, relate to the field of communications technologies, and specifically provide a method and an apparatus for setting a resource unit bundling size, to help improve accuracy of a channel estimation result. The method may include: generating parameter configuration signaling, and sending the parameter configuration signaling. The parameter configuration signaling is used to indicate the resource unit bundling size. The resource unit bundling size may be applied to at least two inconsecutive time-frequency resources in frequency domain, and each time-frequency resource includes at least one consecutive resource unit in frequency domain; or may be applied to at least two inconsecutive time-frequency resources in time domain, and each time-frequency resource includes at least one consecutive resource unit in time domain.

公开(公告)号：US20190173548A1

公开(公告)日：2019-06-06

申请号：US16262857

申请日：2019-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Jianghua LIU

IPC: H04B7/06

Abstract: This application relates to the field of mobile communications, and in particular, to technologies of obtaining channel state information in a wireless communications system. In a channel information obtaining method, a base station obtains channel state matrix information of some channels based on uplink reference information sent by a terminal and partial channel state information of channels between the base station and the terminal, to obtain channel state matrix information of the channels between the base station and the terminal. Base on this method, relatively complete channel state matrix information of the channels between the base station and the terminal can be obtained. This helps the base station select an appropriate parameter to transmit data to the terminal without causing an additional delay, performance loss, or cost increase, or consuming more time-frequency resources used for the uplink reference signal.

公开(公告)号：US20220337295A1

公开(公告)日：2022-10-20

申请号：US17731085

申请日：2022-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda LIU ,  Kunpeng LIU ,  Leiming ZHANG

IPC: H04B7/0456

Abstract: Example receiving parameter indication methods and apparatus are described. One example method includes receiving transmission parameter indication information, where the transmission parameter indication information is used to indicate an index value in an index value set corresponding to a codebook subset configuration. The value of the quantity of transmission layers and a precoding matrix is determined based on the transmission parameter indication information.

公开(公告)号：US20210385113A1

公开(公告)日：2021-12-09

申请号：US17408009

申请日：2021-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu SUN ,  Yi QIN ,  Zhongfeng LI ,  Leiming ZHANG ,  Shengyue DOU

IPC: H04L25/03 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W72/12

Abstract: Embodiments of the present invention disclose a reference signal transmission method, including: sending, by a terminal, a first reference signal and a second reference signal; and correspondingly, receiving, by a network device, the first reference signal and the second reference signal, where the first reference signal is mapped to a plurality of symbols and is used for estimation of channel state information, the second reference signal is mapped to at least two of the plurality of symbols and is used for phase tracking, and a subcarrier to which the second reference signal is mapped on one of the at least two symbols has a same frequency-domain location as a subcarrier to which the second reference signal is mapped on the rest of the at least two symbols. With the foregoing solution, accuracy of channel state information estimation can be improved.

公开(公告)号：US20200007206A1

公开(公告)日：2020-01-02

申请号：US16566202

申请日：2019-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Yifan LIU ,  Ming LEI

IPC: H04B7/06 ,  H04B7/024

Abstract: Embodiments of the present invention disclose an interference coordination method and apparatus. The method includes: receiving direction restriction information, where the direction restriction information includes angle restriction information, and the angle restriction information is used to indicate a restricted transmission direction; determining a signal preprocessing manner, where a transmission direction formed based on the signal preprocessing manner does not include the restricted transmission direction; and feeding back the signal preprocessing manner. According to the embodiments of the present invention, signaling overheads can be reduced, and an interference coordination application scenario can be expanded.

公开(公告)号：US20190319763A1

公开(公告)日：2019-10-17

申请号：US16453562

申请日：2019-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Yifan LIU ,  Ming LEI

IPC: H04L5/00 ,  H04W72/04

Abstract: The method includes: determining, by a first device from a plurality of subbands included in system bandwidth, a first subband that is used to transmit a measurement pilot signal, where one subband includes at least one physical resource block; sending, by the first device, identifier information of the first subband to a second device; and transmitting the measurement pilot signal in at least one physical resource block corresponding to the first subband to the second device.

公开(公告)号：US20180091198A1

公开(公告)日：2018-03-29

申请号：US15817925

申请日：2017-11-20

Applicant: HUAWEI TECHNOLOGIES CO. , LTD.

Inventor： Leiming ZHANG ,  Kunpeng LIU

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639 ,  H04L29/08

Abstract: Embodiments of the present invention provide a signal transmission method and device. The method includes: determining, by a sending device, a target precoding matrix V, where V=(H)−1·{tilde over (H)}, H indicates a channel matrix between the sending device and a receiving device, {tilde over (H)} indicates an equivalent channel matrix between the sending device and the receiving device, ({tilde over (H)}H·{tilde over (H)}) or ({tilde over (H)}·{tilde over (H)}H) is a diagonal matrix, and {tilde over (H)} is related to a transmission distance D between the sending device and the receiving device and an element spacing of an antenna of the receiving device; and sending, by the sending device, a signal to the receiving device according to the target precoding matrix V. Because {tilde over (H)} meets a characteristic that ({tilde over (H)}H·{tilde over (H)}) or ({tilde over (H)}·{tilde over (H)}H) is a diagonal matrix, a channel corresponding to {tilde over (H)} can support multiple data stream transmission. Therefore, the signal transmission method and device provided in the embodiments of the present invention can support multiple data stream transmission.

公开(公告)号：US20170346616A1

公开(公告)日：2017-11-30

申请号：US15675060

申请日：2017-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG

IPC: H04L5/16 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L5/16 ,  H04L5/0005 ,  H04W72/04 ,  H04W72/0453

Abstract: The present invention discloses a data transmission method and device. The method includes: separately configuring, by an eNodeB in different time units on a specific frequency band according to a TDD mode or an FDD mode, an uplink frequency resource used for transmitting uplink data and a downlink frequency resource used for transmitting downlink data; and sending, by the eNodeB, downlink data to user equipment UE by using the configured downlink frequency resource, and receiving, by using the configured uplink frequency resource, uplink data sent by the UE, so that an uplink frequency resource and a downlink frequency resource are configured in different time units on a same frequency band according to both a TDD mode and an FDD mode.