公开(公告)号：US20190199552A1

公开(公告)日：2019-06-27

申请号：US16287791

申请日：2019-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Di ZHANG

IPC: H04L25/02 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: This application discloses a channel estimation method, a reference signal sending method, an apparatus, and a system, and belongs to the communications field. The method includes: when a first precoding weight of a first reference signal and a second precoding weight of a second reference signal are the same, receiving, by a first network device, the first reference signal in a first time unit according to a first pattern, and receiving the second reference signal in a second time unit according to a second pattern; and performing, by the first network device, channel estimation on a channel in the second time unit.

公开(公告)号：US20190182635A1

公开(公告)日：2019-06-13

申请号：US16274200

申请日：2019-02-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin LIU ,  Yongxing ZHOU ,  Kunpeng LIU

IPC: H04W4/18 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: The present invention discloses a control information transmission method and an apparatus. In one solution of the present invention, control information that is sent by a control information sending device is associated with one of at least two transmission schemes, and the control information includes information used to indicate a transmission scheme type, so that a control information receiving device can determine the corresponding transmission scheme based on the control information.

公开(公告)号：US20190181996A1

公开(公告)日：2019-06-13

申请号：US16266722

申请日：2019-02-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Liang XIA ,  Jianghua LIU ,  Yongxing ZHOU

IPC: H04L5/00 ,  H04W72/04 ,  H04W48/16

Abstract: Embodiments of the present invention provide a control channel detection method, a user equipment, and a base station, where the method includes: acquiring parameter configuration information corresponding to different control channel resource sets, and detecting a control channel in the corresponding different control channel resource sets according to the parameter configuration information, which therefore implements selection of a dynamic node.

公开(公告)号：US20190166514A1

公开(公告)日：2019-05-30

申请号：US16264333

申请日：2019-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU

IPC: H04W24/08 ,  H04L5/00 ,  H04L1/20

Abstract: Embodiments of the application relate to the communications field, and disclose a channel quality information calculation method, apparatus, and system. The method includes: receiving, by a terminal, a downlink configuration instruction sent by an access network device; performing, by the terminal, measurement on a reference signal resource indicated by the downlink configuration instruction, to obtain first channel quality information, and sending the first channel quality information to the access network device; sending, by the terminal, an SRS to the access network device; and calculating, by the access network device, second channel quality information based on the first channel quality information and the SRS.

公开(公告)号：US20190074949A1

公开(公告)日：2019-03-07

申请号：US16175431

申请日：2018-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Jianghua LIU

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L25/02

Abstract: The embodiments of the present invention provide a demodulation reference signal processing method, a base station and a user equipment. A processing method includes: generating, by a base station, a DMRS corresponding to an E-PDCCH by using information that is available before a UE receives the E-PDCCH sent by the base station; and mapping, by the base station, the DMRS onto a time-and-frequency resource corresponding to a downlink control channel region and used for transmitting a reference signal, and sending the DMRS to the UE. In the technical solutions of the embodiments of the present invention, the base station and the UE no longer use an SCID for generating the DMRS, which solves the problem that the UE cannot obtain the SCID before receiving the E-PDCCH and cannot generate the DMRS, and further, cannot demodulate the E-PDCCH, and enables demodulation of the E-PDCCH.

公开(公告)号：US20190069281A1

公开(公告)日：2019-02-28

申请号：US16171045

申请日：2018-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Chi GAO ,  Jianghua LIU ,  Jianqin LIU

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/02

Abstract: This application provides an enhanced physical downlink control channel transmission method and apparatus. The method includes: in a physical resource block set, separately arranging first resource groups in each physical resource block pair PRB pair, where the first resource groups are enhanced resource element groups eREGs or REGs, and the physical resource block set includes at least one of the physical resource block pairs; numbering second resource groups according to a correspondence between the first resource groups and the second resource groups in the physical resource block set, where the second resource groups are control channel element eCCE groups or control channel candidates; determining numbers of the second resource groups for transmitting an E-PDCCH; and mapping, according to the determined numbers, the E-PDCCH to the corresponding first resource groups for transmission. The technical solution of this application resolves an E-PDCCH transmission problem.

公开(公告)号：US20180351617A1

公开(公告)日：2018-12-06

申请号：US16059948

申请日：2018-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Jianghua LIU ,  Yongxing ZHOU

IPC: H04B7/0456 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0417

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

公开(公告)号：US20180213527A1

公开(公告)日：2018-07-26

申请号：US15934336

申请日：2018-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin LIU ,  Ruiqi ZHANG ,  Kunpeng LIU

IPC: H04W72/04 ,  H04W72/08 ,  H04W24/10

CPC classification number: H04W72/0413 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/10 ,  H04W24/10 ,  H04W72/044 ,  H04W72/048 ,  H04W72/085

Abstract: Embodiments of the present invention disclose a resource selection method and apparatus. The method includes: configuring a CSI process for a second device, where the CSI process is corresponding to configuration information of K reference signal resources or configuration information of K reference signal antenna port groups; and sending a reference signal to the second device according to the configuration information corresponding to the CSI process, so that the second device obtains a corresponding channel quality measurement result by measuring the reference signal, where the channel quality measurement result includes a precoding matrix indicator (PMI), the PMI is used to indicate a serial number of a precoding matrix selected by the second device, the selected precoding matrix is a matrix in a preset precoding matrix set, and the preset precoding matrix set is determined according to K and a quantity T of beams that need to be selected.

公开(公告)号：US20180167117A1

公开(公告)日：2018-06-14

申请号：US15895666

申请日：2018-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Jianghua LIU ,  Leiming ZHANG

IPC: H04B7/04 ,  H04B7/0417 ,  H04B7/06 ,  H04L1/06

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0663 ,  H04L1/06

Abstract: The present invention provides a codebook configuration method and user equipment. The UE receives a reference signal that is of an antenna whose quantity of antenna ports is X and that is sent by a base station and configuration information of a codebook subset restriction for the quantity X of antenna ports, where the configuration information of the codebook subset restriction for the quantity X of antenna ports includes first configuration information and second configuration information; determines, according to the configuration information of the codebook subset restriction for the quantity X of antenna ports, a precoding matrix on which channel measurement and feedback need to be performed; and obtains, by means of measurement according to the reference signal, the precoding matrix on which channel measurement and feedback need to be performed and that is of antenna ports.

公开(公告)号：US20170265092A1

公开(公告)日：2017-09-14

申请号：US15606576

申请日：2017-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Liang XIA ,  Yuan XIA

IPC: H04W24/02 ,  H04L25/02 ,  H04J13/10

CPC classification number: H04W24/02 ,  H04J13/10 ,  H04L25/0226

Abstract: A reference signal sequence configuration method includes: selecting, by a network device and from candidate IDs, an ID used for generating a reference signal initialization sequence for a terminal, where the candidate IDs include at least two IDs, and the selected ID does not include a scrambling ID; and generating a reference signal initialization sequence for the terminal according to the selected ID. An implementation manner of the present invention further provides a network device. In the reference signal sequence configuration method and the network device, a reference signal initialization sequence is generated according to the selected ID, thereby providing a manner of generating a reference signal initialization sequence different from the manner in the prior art.