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：US20210167829A1

公开(公告)日：2021-06-03

申请号：US17171627

申请日：2021-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Ruiqi ZHANG ,  Kunpeng LIU ,  Xianda LIU ,  Yongxing ZHOU

IPC: H04B7/06 ,  H04W72/04 ,  H04B17/345 ,  H04L5/00

Abstract: This application provides a channel state information reporting method and apparatus. The method includes: A terminal device receives M pieces of downlink control information, where first downlink control information in the M pieces of downlink control information indicates a first channel state information configuration, the first channel state information configuration is associated with a first channel state information interference measurement CSI-IM resource group, and the first CSI-IM resource group includes N1 CSI-IM resources, where M and N1 are positive integers, and N1 is greater than 1; and the terminal device measures a target CSI-IM resource, and reports channel state information, where the target CSI-IM resource is determined by the terminal device from the N1 CSI-IM resources based on M, and a quantity of target CSI-IM resources is less than N1.

公开(公告)号：US20210068191A1

公开(公告)日：2021-03-04

申请号：US17094200

申请日：2020-11-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Di ZHANG ,  Xu ZHANG ,  Lixia XUE

IPC: H04W76/19 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04 ,  H04L1/00 ,  H04W76/11

Abstract: This application provides a link recovery method, including: determining a link failure of a first control resource set, where the first control resource set is a control resource set configured by a first master information block MIB; and sending a link failure recovery request, where the link failure recovery request is used to request to recover a communication link of the first control resource set. The first control resource set may be a CORESET, a control region (control region), or an ePDCCH set (set) defined in a 5G mobile communications system.

公开(公告)号：US20200374749A1

公开(公告)日：2020-11-26

申请号：US16989182

申请日：2020-08-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04W28/04 ,  H04W72/12 ,  H04W24/10

Abstract: Embodiments of the present invention disclose an information transmission method, a related device, and a system. The method includes: determining, by a terminal device at a moment n, that a communication failure occurs on a physical downlink control channel (PDCCH) on a first control resource set; and if the terminal device detects, within a first time period after the moment n, that channel quality of the PDCCH on the first control resource set meets a first preset condition, canceling, by the terminal device, sending of communication failure recovery request information, and/or stopping, by the terminal device, timing of a communication failure recovery clock. In the embodiments of the present invention, a communication link can be rapidly recovered after a communication failure occurs.

公开(公告)号：US20200068498A1

公开(公告)日：2020-02-27

申请号：US16669171

申请日：2019-10-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU

IPC: H04W52/14 ,  H04L5/00 ,  H04W52/24 ,  H04W52/40 ,  H04W72/04

Abstract: An uplink power control method comprises: receiving configuration information of a channel state information reference signal (CSI-RS) from a base station, wherein the configuration information of the CSI-RS comprises reference signal port information and reference signal power information; and measuring a path loss for uplink power control based on the configuration information of the CSI-RS. Using the CSI-RS to measure the path loss differs from using a common CRS in that the CSI-RS may be aimed at a specific base station. Therefore, path loss measurement may be performed with respect to a target base station of uplink transmission, enabling the path loss compensation to match the actual path loss, thus improving the performance of uplink power control.

公开(公告)号：US20200022004A1

公开(公告)日：2020-01-16

申请号：US16581553

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Xueru LI ,  Lixia XUE

IPC: H04W24/04 ,  H04L1/16 ,  H04L1/00

Abstract: Embodiments of the present invention disclose a link re-establishment method and a device, and relate to the communications field: When detecting that a first downlink beam pair set is invalid, UE sends a first uplink signal to a base station at a moment n by using a first uplink beam pair set through a first uplink channel, where the first uplink signal is used to notify the base station that the first downlink beam pair set is invalid; and the UE detects, at a moment n+k, a first downlink signal sent by the base station by using a second downlink beam pair set through a first downlink channel.

公开(公告)号：US20190334591A1

公开(公告)日：2019-10-31

申请号：US16504832

申请日：2019-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Xueru LI ,  Bingyu QU

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

Abstract: The present disclosure relates to information feedback methods and apparatus. One example method includes receiving signaling from a base station, where the signaling is used to instruct to feed back transmit diversity-based channel state information and sending feedback information to the base station, where the feedback information includes precoding matrix indicator (PMI), the PMI is used to indicate a precoding matrix in a precoding matrix set, and a structure of the precoding matrix is one of two specific structures.

公开(公告)号：US20190326974A1

公开(公告)日：2019-10-24

申请号：US16460662

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Kunpeng LIU ,  Bingyu QU

IPC: H04B7/06 ,  H04B7/0456

Abstract: Embodiments of the present invention provide a communication method, a base station, and a terminal device. The method includes: transmitting, by a base station, signals to a terminal device by using n port groups, where each of the n port groups includes at least two ports; and receiving, by the base station, s first linear combination coefficient groups transmitted by the terminal device, where each first linear combination coefficient group includes first linear combination coefficients of one of s port groups, at least one first linear combination coefficient group includes at least two non-zero coefficients, the s first linear combination coefficient groups are used to determine a first precoding matrix, the s port groups are included in the n port groups. This can improve channel feedback precision of the terminal device, and further help improve performance of transmission between the base station and the terminal device.

公开(公告)号：US20190089508A1

公开(公告)日：2019-03-21

申请号：US16197611

申请日：2018-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Jianghua LIU

IPC: H04L5/00 ,  H04W72/12 ,  H04L1/00 ,  H04W48/12

Abstract: Embodiments of the present invention disclose methods and apparatuses for receiving and sending a control channel, and are applicable to the field of communications technologies. In the embodiments of the present invention, a base station carries scheduling information of a user equipment of an R11 system in both the PDCCH region and the E-PDCCH region of a downlink subframe. In this way, the user equipment needs to detect the control channel within the PDCCH region and the E-PDCCH region, so that resources of the two regions are available to the user equipment of the R11 system. Moreover, the user equipment detects only the control channel of the first type in the PDCCH region, and detects control channels of the other type in the E-PDCCH region. The method in the embodiments of the present invention does not increase the number of control channel detections.

公开(公告)号：US20190053212A1

公开(公告)日：2019-02-14

申请号：US16134390

申请日：2018-09-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin LIU ,  Kunpeng LIU

IPC: H04W72/04 ,  H04L5/00

Abstract: This application discloses example information indication methods and related devices. In one example method, a terminal device receives first information used to instruct the terminal device to receive a first channel in a first time unit, and second information used to instruct the terminal device to receive a second channel in a second time unit. The terminal device receives the first channel based on the first information. When the first time unit is equal to the second time unit, the terminal device receives the second channel based on the first information, where the second information is a first indicator value. When the first time unit is not equal to the second time unit, the terminal device receives the second channel based on the second information where the second information is a second indicator value.