公开(公告)号：US11910393B2

公开(公告)日：2024-02-20

申请号：US17959878

申请日：2022-10-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao Sun ,  Yongzhao Cao ,  Hua Li ,  Ruiqi Zhang ,  Lixia Xue

IPC: H04W72/21 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/1268

CPC classification number: H04W72/21 ,  H04L1/1812 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/1268

Abstract: This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.

公开(公告)号：US11509360B2

公开(公告)日：2022-11-22

申请号：US16371858

申请日：2019-04-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Ruiqi Zhang

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

Abstract: Embodiments of this application disclose a terminal device capability transmission method, apparatus, and system. A terminal device reports, to a network device, capability information used to indicate a channel state information CSI reporting capability of the terminal device. The capability information is associated with a quantity, supported by the terminal device in a time-domain unit, of ports of pilots used for CSI measurement, and is used to enable the network device receiving the capability information to learn the CSI reporting capability of the terminal device, thereby determining a CSI measurement configuration of the terminal device.

公开(公告)号：US11424803B2

公开(公告)日：2022-08-23

申请号：US17349007

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Gao ,  Kunpeng Liu ,  Ruiqi Zhang

IPC: H04B7/06 ,  H04B7/0413

Abstract: Example communication methods and devices are provided. One example method includes a first device determines a first channel state information CSI report based on a precoding matrix type, where the precoding matrix type is a compressed type or an uncompressed type. The first device sends the first CSI report to a second device, where the first CSI report includes a CSI part 1 and a CSI part 2, the CSI part 1 indicates a number of bits of the CSI part 2 and the precoding matrix type, the CSI part 2 indicates wideband precoding matrix indicator (PMI) information, the wideband PMI information indicates an oversampling factor of a preset orthogonal beam vector and/or an index of the preset orthogonal beam vector, and the preset orthogonal beam vector is a spatial-domain orthogonal basis vector selected by the first device from a spatial-domain basis vector set.

公开(公告)号：US11296759B2

公开(公告)日：2022-04-05

申请号：US17155169

申请日：2021-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru Li ,  Ruiqi Zhang

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/0417 ,  H04B7/06

Abstract: This application discloses a precoding matrix index (PMI) reporting method, and related communications apparatus and medium. The method includes: determining an rank indicator (RI) and a PMI, where the PMI is used to determine R precoding matrices W1, . . . , WR. An rth precoding matrix Wr in the R precoding matrices satisfies Wr=W1×W2,r, where an lth row of W2,r is obtained by performing DFT transform on an lth row of a matrix V2,r, and R is indicated by the RI. The PMI includes first indication information and second indication information. The first indication information includes location index information. The location index information is used to indicate Km,r element locations tr,m,1, . . . , ∈{1, . . . , T} on an mth row of V2,r. The second indication information is used to indicate Km,r complex coefficients at the element locations tr,m,1, . . . , on the mth row of V2,r. V2,r is determined based on the Km,r element locations and the Km,r complex coefficients.

公开(公告)号：US11290989B2

公开(公告)日：2022-03-29

申请号：US16719286

申请日：2019-12-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru Li ,  Ruiqi Zhang ,  Hao Sun

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L5/10 ,  H04W24/10

Abstract: This application provides an information transmission method and apparatus. The method includes: receiving, by a terminal device, a plurality of pieces of downlink control information DCI, where each of the plurality of pieces of DCI is used to trigger reporting of one piece of UCI and indicate a physical uplink control channel PUCCH resource carrying the UCI, the UCI includes at least one piece of channel state information CSI and response information, and PUCCH resources indicated by the plurality of pieces of downlink DCI occupy at least one same orthogonal frequency division multiplexing OFDM symbol; and sending, by the terminal device, target UCI on a target PUCCH resource, where the target UCI includes UCI triggered by the plurality of pieces of DCI, and the target PUCCH resource is one of the PUCCH resources indicated by the plurality of pieces of DCI. In this way, aperiodic CSI triggered by DCI can be transmitted on a PUCCH resource.

公开(公告)号：US11277178B2

公开(公告)日：2022-03-15

申请号：US16997670

申请日：2020-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Xueru Li ,  Di Zhang

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: Channel state information (CSI) sending methods, apparatuses, and systems are disclosed. In an implementation, a method comprises: receiving, by a network device from a terminal device, channel state information (CSI) comprising a rank indicator (RI), indication information, and a second precoding matrix indicator (PMI2); determining, by the network device, the RI and the indication information from the CSI; determining, by the network device, the PMI2 based on the RI and the indication information; and determining, by the network device, a precoding matrix W based on the RI and the PMI2, wherein W satisfies W=W1×W2, W is an Nt by L matrix, W1 is an Nt by 2I matrix, W2 is a 2I by L matrix, L is a rank indicated by the RI, Nt is greater than or equal to L, and I is an integer greater than or equal to 1.

公开(公告)号：US11153055B2

公开(公告)日：2021-10-19

申请号：US16568681

申请日：2019-09-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Han ,  Jinyao Liang ,  Ruiqi Zhang ,  Ting Wang ,  Huangping Jin ,  Shengyue Dou ,  Yuanjie Li

IPC: H04L5/00 ,  H04B17/309 ,  H04W72/04

Abstract: One example method for measuring a channel state information reference signal includes receiving, from a network device, a partial channel state information reference signal resource sets selected from a plurality of channel state information reference signal resource sets and indication information indicating one or more resource sets for channel measurement, which are from the partial channel state information reference signal resource sets, and performing channel measurement by using the one of the one or more resource sets for channel measurement indicated by the indication information.

公开(公告)号：US11057085B2

公开(公告)日：2021-07-06

申请号：US16886143

申请日：2020-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru Li ,  Ruiqi Zhang

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/0417

Abstract: A bit field indication manner is provided. A first field is determined, where the first field includes T1 bits, at least one of the T1 bits indicates at least two elements {bi0, bi1, . . . , bik} in a set B, the at least one bit further indicates at least one element {θj0, θj1, . . . , θjh} in a set Φ, and at least one element in {bi0, bi1, . . . , bik} and at least one element in {θj0, θj1, . . . , θjh} are used to form a preceding matrix, where the set B={b0, b1, L, bT2−1}, an element in the set B is a vector with a length of N/4, the set Φ={θ0, θ1, . . . , θS−1}, an element in Φ is a complex number of a unit amplitude.

公开(公告)号：US11032728B2

公开(公告)日：2021-06-08

申请号：US16228118

申请日：2018-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Jianqin Liu

IPC: H04L1/00 ,  H04W24/10 ,  H04B7/0417 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/0452 ,  H04B7/06 ,  H04L25/03

Abstract: The present disclosure describes information reporting methods and related apparatuses used to control channel state information reporting between network devices. One example method includes receiving, by a second network device, control information sent by a first network device. The control information can include a trigger signal and a channel state information type, and the trigger signal can be used to trigger the second network device to report target channel state information to the first network device. The second network device determines the target channel state information based on the channel state information type, and then reports the target channel state information to the first network device based on the trigger signal and the channel state information type.

公开(公告)号：US10979171B2

公开(公告)日：2021-04-13

申请号：US16716409

申请日：2019-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyu Qu ,  Ruiqi Zhang

IPC: H04L1/00 ,  H04L1/06 ,  H04L1/16

Abstract: Embodiments provide a data transmission method, a network device, and a terminal device. For achieving this, indication signaling indicating data transmission of one transport block can be sent. The indication signaling carries a status value indicating a quantity of coding block groups in the transport block. The status value further indicates at least one coding block group in the data transmission. The status value is represented by using a maximum of K+1 bits, and K is a maximum value of the quantity of coding block groups that can be included in the transport block. In various embodiments, a network device jointly indicates, by using the status value, the quantity of coding block groups in the transport block and the at least one coding block group included in the data transmission, so that a quantity of bits occupied by the indication signaling is reduced, thereby reducing signaling overheads.