公开(公告)号：US20210044458A1

公开(公告)日：2021-02-11

申请号：US17081713

申请日：2020-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang GAO ,  Ruiqi ZHANG

IPC: H04L25/02 ,  H04B1/713 ,  H04L1/16 ,  H04L5/00

Abstract: A method for transmitting a sounding reference signal and a terminal device are provided. The method includes: receiving, by the terminal device, SRS configuration information from a network device; determining, based on one or more of an SRS bandwidth configuration parameter, a sequence number nSRS of a quantity of SRS transmissions, a quantity Λ of antenna ports, and the received SRS configuration information, an index α(nSRS) corresponding to an antenna port used to transmit an SRS; selecting the antenna port with the index of α(nSRS) from indexes corresponding to the Λ antenna ports; and transmitting the SRS through the antenna port with the index of α(nSRS) during an nSRSth SRS transmission. nSRS is an integer greater than or equal to 0, Λ is a positive integer greater than or equal to 4, and a symbol * indicates a multiplication operation.

公开(公告)号：US20210022165A1

公开(公告)日：2021-01-21

申请号：US17062208

申请日：2020-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao SUN ,  Yongzhao CAO ,  Hua LI ,  Ruiqi ZHANG ,  Lixia XUE

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00

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：US20210021309A1

公开(公告)日：2021-01-21

申请号：US17039475

申请日：2020-09-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Xiang GAO

IPC: H04B7/0456 ,  H04L27/26

Abstract: This application provides an example communication method and apparatus. The communication method is performed in a communications system, where N antenna ports are configured for the terminal device, N is an integer greater than or equal to 2, the N antenna ports correspond to T antenna port combination modes, each antenna port combination mode corresponds to M antenna ports in the N antenna ports, and each antenna port combination mode set includes at least one antenna port combination mode. The communication method includes receiving, by the network device, first indication information from the terminal device, where the first indication information is used to indicate a first antenna port combination mode set. The method also includes determining, by the network device, K antenna ports in the N antenna ports based on the first antenna port combination mode set and sending, by the network device, second indication information to the terminal device.

公开(公告)号：US20200295807A1

公开(公告)日：2020-09-17

申请号：US16886143

申请日：2020-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Ruiqi ZHANG

IPC: 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：US20200067663A1

公开(公告)日：2020-02-27

申请号：US16673111

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00 ,  H04B7/0456 ,  H04W72/04 ,  H04W72/12

Abstract: This application provides a data transmission method, terminal device, and network device. The method includes: sending, by a terminal device, at least one precoded reference signal on at least one reference signal resource corresponding to a first PRG, where different precoding matrixes are used for different reference signals, and the first PRG is a PRG used to transmit a reference signal; receiving, by the terminal device, resource indication information, where the resource indication information indicates a reference signal resource that is corresponding to a second PRG and that is in the at least one reference signal resource, and the second PRG is a PRG used to transmit a physical uplink shared channel (PUSCH); and sending, by the terminal device, a precoded PUSCH on the second PRG based on the resource indication information, where a precoding matrix used for the PUSCH is a precoding matrix used for a reference signal sent on the reference signal resource corresponding to the second PRG. In this way, a precoding matrix used to transmit the PUSCH on the second PRG can be effectively selected.

公开(公告)号：US20200028554A1

公开(公告)日：2020-01-23

申请号：US16583043

申请日：2019-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Jianqin LIU

IPC: H04B7/0456 ,  H04L1/06 ,  H04B7/06

Abstract: A method and apparatus for precoding matrix indicator feedback reduce a quantity of bits in the feedback. In the method, a terminal device receive a reference signal from a base station, determines a precoding matrix W in a precoding matrix set corresponding to a rank indication. W satisfies W=W1×W2×W3, W1, W2 and W3 and matrices and respectively corresponding to a first, second and third precoding matrix indicator. None of W1, W2, and W3 is an identity matrix, and the 2M columns in W1 comprise every column in W1×W2. The terminal device transmits the rank indication, the first precoding matrix indicator, the second precoding matrix indicator, and the third precoding matrix indicator to the base station. Therefore, a quantity of to-be-selected vectors is reduced by using a first-stage feedback and a second-stage feedback, thereby reducing calculation complexity of third-stage feedback, and reducing a quantity of bits in the third-stage feedback.

公开(公告)号：US20180212661A1

公开(公告)日：2018-07-26

申请号：US15934701

申请日：2018-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin LIU ,  Ruiqi ZHANG ,  Kunpeng LIU

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/065 ,  H04B7/0689 ,  H04B7/0695 ,  H04L1/0026 ,  H04L1/06 ,  H04L5/0057 ,  H04W24/10 ,  H04W72/0406 ,  H04W72/085 ,  H04W76/28

Abstract: A method and an apparatus for reporting channel state information and an electronic device. The method includes: obtaining to-be-reported channel state information CSI, where the channel state information includes a first part and a second part, the first part includes indication information used for beam selection, and the second part includes information other than the indication information used for beam selection; and reporting the channel state information to a first device in a preset reporting manner including a first and a second manner. The first manner includes: transmitting the first part on a first channel, and transmitting the second part on a second channel. The second manner includes: transmitting both the first part and the second part on the first channel. In the present disclosure, reporting of a beam selection indication can be implemented, while a new format for a PUCCH or a PUSCH is not needed.

公开(公告)号：US20240275462A1

公开(公告)日：2024-08-15

申请号：US18624988

申请日：2024-04-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang GAO ,  Kunpeng LIU ,  Ruiqi ZHANG

IPC: H04B7/06 ,  H04W72/02 ,  H04W72/044 ,  H04W72/0453

CPC classification number: H04B7/0634 ,  H04B7/0639 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/046

Abstract: Embodiments of the present invention disclose a communication method and a device. Configuration information indicating one or more spatial domain beam basis vector groups and Q thresholds is received from a network device, where the Q thresholds correspond one-to-one to spatial domain beam basis vectors in the one or more spatial domain beam basis vector groups. L spatial domain beam basis vectors are selected from a spatial domain beam basis vector group set. K frequency domain basis vectors are selected from a frequency domain basis vector set for each of the L spatial domain beam basis vectors.

公开(公告)号：US20210218443A1

公开(公告)日：2021-07-15

申请号：US17214175

申请日：2021-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Xueru LI

IPC: H04B7/0456

Abstract: Embodiments of this application provide a precoding matrix indication method, a communications apparatus, and a storage medium. A precoding matrix of each of K frequency-domain units satisfies W=W1×W2, and elements in W2 in the K frequency-domain units are represented by P elements that are relatively few. A terminal device reports third indication information, where the third indication information includes first indication information and the second indication information, and the first indication information and the second indication information are independently encoded. The first indication information is used to indicate the P elements, and the second indication information is used to indicate P. Therefore, the terminal device can adjust a quantity of information bits of the second indication information based on a channel condition change, thereby improving precoding matrix reporting efficiency.

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.