公开(公告)号：US20210344534A1

公开(公告)日：2021-11-04

申请号：US17362065

申请日：2021-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyu QU ,  Xianda LIU ,  Mingxin GONG ,  Kunpeng LIU

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/20

Abstract: The present disclosure relates to signal processing methods and apparatus. One example method includes determining a first sequence {x(n)} based on a preset condition and a sequence {s(n)}, generating a reference signal of a first signal by using the first sequence, and sending the reference signal on a first frequency-domain resource. The preset condition is xn=y(n+M)mod K, where y n = A · e j × π × s n 8 , a length of the first sequence is K=6, n=0, 1, . . . , K−1, A is a non-zero complex number, and j=√{square root over (−1)}. The first signal is a signal modulated by using π/2 binary phase shift keying (BPSK). The first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, k=u+L*n+delta, L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.

公开(公告)号：US20210328842A1

公开(公告)日：2021-10-21

申请号：US17361720

申请日：2021-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda LIU ,  Mingxin GONG ,  Bingyu QU ,  Kunpeng LIU

IPC: H04L27/26 ,  H04J13/00

Abstract: This application provides a sequence-based signal processing method and apparatus. An example signal processing method includes: determining a sequence {xn} including N elements, where N is equal to 18 and the sequence {xn} satisfies a preset condition; generating a first signal based on the sequence {xn}; and sending the first signal.

公开(公告)号：US20210195572A1

公开(公告)日：2021-06-24

申请号：US17193975

申请日：2021-03-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng GUAN ,  Kunpeng LIU ,  Xiangpu LIU ,  XI ZHANG

IPC: H04W72/04

Abstract: This application provides a resource management method, including: receiving, by a terminal device, a plurality of beams sent by a network device; determining, by the terminal device, a correlation of at least two beams in the plurality of beams based on index numbers of the at least two beams; and reporting, by the terminal device, the at least two beams to the network device, where a correlation between any two of the at least two beams meets a requirement of the network device. The method can enable the terminal device to report a beam to the network device based on a correlation requirement of the network device.

公开(公告)号：US20210167839A1

公开(公告)日：2021-06-03

申请号：US17174041

申请日：2021-02-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04B7/08 ,  H04W76/19 ,  H04W72/04 ,  H04W76/11 ,  H04W74/08 ,  H04L5/00

Abstract: In the method, a terminal device may send first indication information on a first uplink resource based on information about a spatial relation parameter, to indicate that a link failure occurs in a ith cell in N second cells. The information about the spatial relation parameter is information about a spatial relation parameter used to send a channel and/or a signal of a first cell, and the first uplink resource is an uplink resource of the first cell. Therefore, the network device does not need to configure a plurality of uplink resources that are associated with a plurality of reference signal resources of a second cell and that are used to indicate that a link failure occurs in the second cell, thereby reducing resource overheads.

公开(公告)号：US20210167831A1

公开(公告)日：2021-06-03

申请号：US17173001

申请日：2021-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04B7/06 ,  H04B17/318 ,  H04B17/345 ,  H04L5/00

Abstract: This application provides a method which includes: receiving, by a terminal, N reference signal groups, where each of the N reference signal groups includes at least two reference signals that are simultaneously received; and sending indication information used to indicate channel state information of at least one reference signal in each of K reference signal groups. Therefore, the terminal can feed back the channel state information of the reference signal in a scenario in which a plurality of reference signals can be simultaneously received, so that a network device selects a beam from a plurality of beams that can be simultaneously sent to send data.

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：US20200044803A1

公开(公告)日：2020-02-06

申请号：US16579647

申请日：2019-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Jianqin LIU ,  Kunpeng LIU ,  Bingyu QU ,  Yongxing ZHOU

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Embodiments of this application provide a channel state information transmission method, a terminal device, and a network device. The method includes: sending, by a terminal device, a first reference signal through a first antenna port set, where the first antenna port set includes n antenna ports; receiving, by the terminal device, a second reference signal through a second antenna port set, where the second antenna port set includes N antenna ports, and the first antenna port set is a proper subset of the second

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：US20190335443A1

公开(公告)日：2019-10-31

申请号：US16506588

申请日：2019-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Xueru LI

IPC: H04W72/04 ,  H04L5/00

Abstract: This application provides a wireless communication method, a terminal device, and a network device. The method includes: determining, by a terminal device, a pilot signal corresponding to at least one of a plurality of search sections of a control channel; and detecting, by the terminal device, a control channel candidate in the at least one search section based on a quasi-co-location (QCL) association between the pilot signal corresponding to each search section and the demodulation pilot of the control channel candidate in each search section.

公开(公告)号：US20190230714A1

公开(公告)日：2019-07-25

申请号：US16370430

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Xueru LI ,  Bingyu QU

IPC: H04W74/08 ,  H04W74/00

Abstract: The present invention provides an access method, a terminal device, and a base station. The method includes: determining, by a terminal device at a current moment, that a preset condition for a link exception is met, and determining that the current moment is within a preconfigured time window; selecting, by the terminal device, one access resource from at least two preconfigured access resources as a target access resource; and sending, by the terminal device, an access signal to the base station by using a time-frequency resource in the target access resource.