公开(公告)号：US20210007093A1

公开(公告)日：2021-01-07

申请号：US17028602

申请日：2020-09-22

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04L5/00

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：US20200068596A1

公开(公告)日：2020-02-27

申请号：US16673446

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Jianghua LIU

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: This application provides a data transmission method and a device. The method includes: determining to-be-sent B code blocks (CBs); mapping the B CBs to resource elements (REs) of a scheduling resource, to obtain mapped data, where the scheduling resource includes L orthogonal frequency division multiplexing (OFDM) symbols, L1 of the L OFDM symbols meet one of a first condition, a second condition, or a third condition, and at least one of the L1 OFDM symbols has at least two groups of adjacent first elements, where a quantity of elements of another CB between adjacent first elements in one group is the same as that of the other group, and the first elements are elements in one partial CB; and sending the mapped data to a terminal device.

公开(公告)号：US20200044703A1

公开(公告)日：2020-02-06

申请号：US16597825

申请日：2019-10-09

Applicant: Huawei Technologies Co., Ltd.

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

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

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 includes: 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：US20190222288A1

公开(公告)日：2019-07-18

申请号：US16081865

申请日：2014-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing ZHOU ,  Jianguo WANG ,  Leiming ZHANG ,  Jianghua LIU

IPC: H04B7/06 ,  H04W72/00 ,  H04B7/0408 ,  H04L27/26

Abstract: Embodiments provide a base station, user equipment, and communication signal transmitting and receiving methods. The base station includes: a processing unit, configured to determine a resource configuration of a communication signal, where the resource configuration includes at least two different resource element groups; and a transmitting unit, configured to transmit the communication signal on each resource element group included in the resource configuration to user equipment, where the communication signal transmitted on each resource element group carries at least one piece of same information, and the same information is cell specific or user equipment group specific 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：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：US20180351616A1

公开(公告)日：2018-12-06

申请号：US16058636

申请日：2018-08-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo WANG ,  Yongxing ZHOU ,  Jianghua LIU

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

Abstract: Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being W1, Z, and W2, that is, w=w1zw2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≥1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

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.