公开(公告)号：US11700617B2

公开(公告)日：2023-07-11

申请号：US17352916

申请日：2021-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Zhang ,  Jianguo Wang

IPC: H04W72/04 ,  H04W72/23 ,  H04L1/00 ,  H04L5/00 ,  H04W48/12

CPC classification number: H04W72/23 ,  H04L1/0061 ,  H04L5/0048 ,  H04W48/12

Abstract: This application relates to the field of wireless communications, and in particular, to a communication method, an apparatus, and a system in a wireless communications system. In the method, a terminal device detects a physical downlink control channel PDCCH sent by a network device, the PDCCH carries indication information, and the indication information is used to indicate a type of system information; the terminal device determines, based on the indication information, a physical resource carrying the system information; and the terminal device receives the system information on the physical resource. Based on this method, a network device can flexibly indicate a type of system information that needs to be sent.

公开(公告)号：US11671986B2

公开(公告)日：2023-06-06

申请号：US17473665

申请日：2021-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Zhang ,  Jianguo Wang ,  Lixia Xue ,  Zheng Chen

IPC: H04W72/12 ,  H04W72/23 ,  H04W76/27 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W80/08

CPC classification number: H04W72/23 ,  H04L5/0007 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27 ,  H04W80/08

Abstract: A control information transmission method, apparatus, and systems are disclosed. An example method includes: determining configuration information of a control channel, wherein the configuration information comprises at least one of frequency domain information or time domain information, the at least one of frequency domain information or time domain information indicates a time-frequency resource occupied by the control channel, and the configuration information further comprises indication information indicating a quantity of at least one resource element set, wherein the time-frequency resource occupied by the control channel comprises the at least one resource element set; mapping control information to one or more of the at least one resource element set based on the configuration information; sending the configuration information to a terminal device; and sending the control information to the terminal device.

公开(公告)号：US11502806B2

公开(公告)日：2022-11-15

申请号：US17009488

申请日：2020-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zheng Chen ,  Xu Zhang ,  Jianguo Wang

IPC: H04L5/00 ,  H04W72/12

Abstract: A method and an apparatus is provided for sending and receiving uplink control information, including: receiving, by a terminal, a first PDCCH and a second PDCCH that are sent by a network device, where the first PDCCH and the second PDCCH are transmitted in a same time unit, the first PDCCH indicates a first PUCCH resource and is used to schedule a first downlink TB, and the second PDCCH indicates a second PUCCH resource and is used to schedule a second downlink TB; and sending, by the terminal on the first PUCCH resource, response information of the first downlink TB and response information of the second downlink TB to the network device. When one PUCCH fails to be received, the network device may obtain the response information of the two downlink TBs from the other PUCCH, thereby ensuring that HARQ feedback information of the downlink TBs is correctly received.

公开(公告)号：US11323221B2

公开(公告)日：2022-05-03

申请号：US16876087

申请日：2020-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zheng Chen ,  Jianguo Wang ,  Xu Zhang

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

Abstract: Various embodiments provide a method for receiving reference signal and a method for sending a reference signal. In those embodiments, a terminal device can determine a location of a resource element to which a reference signal is mapped. The terminal device can determine a reference signal sequence corresponding to the resource element. The index of each element in the reference signal sequence is determined based on a resource block index of a resource block corresponding to the resource element, a quantity of resource elements that carry the reference signal in the resource block, a resource block offset, or an inter-symbol offset. The terminal device can receive the reference signal by using the resource element, and performing channel estimation or channel sounding based on the received reference signal and the reference signal sequence. Therefore, the terminal device can complete channel estimation without learning of a system bandwidth.

公开(公告)号：US11122557B2

公开(公告)日：2021-09-14

申请号：US16672895

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu Zhang ,  Jianguo Wang ,  Lixia Xue ,  Zheng Chen

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W80/08

Abstract: A control information transmission method, apparatus, and systems are disclosed. An example method includes: determining configuration information of a control channel, wherein the configuration information comprises at least one of frequency domain information or time domain information, the at least one of frequency domain information or time domain information indicates a time-frequency resource occupied by the control channel, and the configuration information further comprises indication information indicating a quantity of at least one resource element set, wherein the time-frequency resource occupied by the control channel comprises the at least one resource element set; mapping control information to one or more of the at least one resource element set based on the configuration information; sending the configuration information to a terminal device; and sending the control information to the terminal device.

公开(公告)号：US10855429B2

公开(公告)日：2020-12-01

申请号：US16418131

申请日：2019-05-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/0413 ,  H04W72/04

Abstract: Embodiments disclose a reference signal transmission method and an apparatus. The method includes receiving reference signal resource configuration information sent by a base station, where the reference signal resource configuration information includes antenna port quantity information and a resource configuration index. The method also includes determining a reference signal configuration from a reference signal configuration set according to the antenna port quantity information and the resource configuration index. The method also includes obtaining, according to the determined reference signal configuration, positions of the resource elements (REs) that are used to send the reference signal on the antenna ports in the antenna port set, and receiving reference signals according to the positions of the REs.

公开(公告)号：US10735063B2

公开(公告)日：2020-08-04

申请号：US16594646

申请日：2019-10-07

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0417

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：US10333677B2

公开(公告)日：2019-06-25

申请号：US15785881

申请日：2017-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/0413 ,  H04W72/04

Abstract: Embodiments disclose a reference signal transmission method and an apparatus. The method includes receiving reference signal resource configuration information sent by a base station, where the reference signal resource configuration information includes antenna port quantity information and a resource configuration index. The method also includes determining a reference signal configuration from a reference signal configuration set according to the antenna port quantity information and the resource configuration index. The method also includes obtaining, according to the determined reference signal configuration, positions of the resource elements REs that are used to send the reference signal on the antenna ports in the antenna port set, and receiving reference signals according to the positions of the REs.

公开(公告)号：US20180323944A1

公开(公告)日：2018-11-08

申请号：US16034883

申请日：2018-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04W24/06 ,  H04B7/06 ,  H04B17/318

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US20180097553A1

公开(公告)日：2018-04-05

申请号：US15834984

申请日：2017-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/03 ,  H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/065 ,  H04L25/03949

Abstract: The present invention relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., eNB), and a system. The 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 two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.