公开(公告)号：US20250023688A1

公开(公告)日：2025-01-16

申请号：US18903508

申请日：2024-10-01

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Rongrong SUN ,  Hao LIU ,  Rakesh TAMRAKAR ,  Yang SONG

IPC: H04L5/00

Abstract: The present application discloses an information transmission method and apparatus, a terminal, and a readable storage medium. The information transmission method of embodiments of the present application includes: determining, by a terminal, a first PTRS port and a transmission layer or DMRS port corresponding to the first PTRS port according to a first TPMI field, where the first TPMI field is a TPMI field associated with a target object associated with uplink transmission of the terminal, and the first PTRS port is a PTRS port actually used by the terminal; and performing uplink transmission by using the first PTRS port and the transmission layer or DMRS port corresponding to the first PTRS port.

公开(公告)号：US20250016756A1

公开(公告)日：2025-01-09

申请号：US18892668

申请日：2024-09-23

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Xueming PAN ,  Zichao JI ,  Kai WU ,  Rakesh TAMRAKAR ,  Siqi LIU ,  Can LI ,  Yi GU

IPC: H04W72/0453 ,  H04W72/232

Abstract: This application discloses a method for waveform switching, a device, and a chip. The method includes: The terminal receives a first downlink control information (DCI) from a network device, where the first DCI is used to schedule physical channels of a plurality of cells; and the terminal uses pre-configured waveforms of the physical channels of the plurality of cells, where when the first DCI is used to schedule the physical channels of the plurality of cells, the terminal does not support dynamic waveform switching.

公开(公告)号：US20240356611A1

公开(公告)日：2024-10-24

申请号：US18761629

申请日：2024-07-02

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Rakesh TAMRAKAR

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04B7/06952

Abstract: This application discloses a channel state information CSI feedback method and apparatus, a terminal, and a network-side device. The method in embodiments of this application includes: determining, by a terminal, N to-be-measured channel state information reference signals CSI-RSs, where N is an integer greater than 1; measuring, by the terminal, the N CSI-RSs to obtain CSI, where the CSI includes a transmission rank, beam indexes respectively corresponding to P CSI-RSs, and a bitmap corresponding to the P CSI-RSs, the bitmap is used to indicate coefficients, subjected to frequency-domain compression, of beams that need feedback of the CSI-RS, and P is an integer less than or equal to N; and transmitting, by the terminal, the CSI to a network-side device.

公开(公告)号：US20240334495A1

公开(公告)日：2024-10-03

申请号：US18743263

申请日：2024-06-14

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Xueming PAN ,  Kai WU ,  Rakesh TAMRAKAR

IPC: H04W74/0833 ,  H04W52/36

CPC classification number: H04W74/0833 ,  H04W52/36

Abstract: This application discloses a PRACH transmission method and apparatus, and a terminal, and relates to the field of communication technologies. The PRACH transmission method in the embodiments of this application includes: determining, by a terminal, a sending power of a physical random access channel PRACH repeated transmission according to a target indication, where the target indication is used for indicating whether sending powers of PRACH transmissions in the PRACH repeated transmission are the same; and performing, by the terminal, PRACH repeated transmission according to the sending power of the PRACH repeated transmission.

公开(公告)号：US20240030985A1

公开(公告)日：2024-01-25

申请号：US18476664

申请日：2023-09-28

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Jiangwei YUAN ,  Yang SONG ,  Rakesh TAMRAKAR ,  Hao DU

IPC: H04B7/06 ,  H04B17/345 ,  H04W24/10

CPC classification number: H04B7/0626 ,  H04B17/345 ,  H04W24/10

Abstract: This application discloses a CSI feedback method, a related device, and a readable storage medium, and pertains to the field of communication technologies. The method of this application may include: obtaining, by a terminal, N CSI report configurations, where the N CSI report configurations are used for determining M pieces of first information; and sending, by the terminal, a first CSI report, where the first CSI report is calculated based on the M pieces of first information, the first information is any one of the following: first reference signal resource, and first parameter corresponding to the first reference signal resource; N is a positive integer; and M is an integer greater than 1.

公开(公告)号：US20230412430A1

公开(公告)日：2023-12-21

申请号：US18460878

申请日：2023-09-05

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Ang YANG ,  Rakesh TAMRAKAR

IPC: H04L25/02 ,  H04W24/10 ,  H04B17/336

CPC classification number: H04L25/0254 ,  H04B17/336 ,  H04W24/10

Abstract: This application discloses an information reporting method and apparatus, a first device, and a second device. The method includes: reporting first information to a second device; where the first information includes predicted first channel state information or second information determined based on the predicted first channel state information, and the first channel state information includes channel state information of a first time period after a reference time point.

公开(公告)号：US20230261834A1

公开(公告)日：2023-08-17

申请号：US18136850

申请日：2023-04-19

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Yuan SHI ,  Rakesh TAMRAKAR

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/231

CPC classification number: H04L5/0051 ,  H04W72/0446 ,  H04W72/231

Abstract: An aperiodic Reference Signal (RS) transmission method, a terminal, and a network-side device are provided. The method includes: receiving first slot offset information, where the first slot offset information is for indicating a first slot offset of a target aperiodic RS resource; and transmitting or receiving the target aperiodic RS resource at a first slot position, where the first slot position is determined from any of the following: the first slot offset, and the first slot offset and a second slot offset; or the second slot offset is a slot offset configured for the target aperiodic RS resource.

公开(公告)号：US20220217776A1

公开(公告)日：2022-07-07

申请号：US17700372

申请日：2022-03-21

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Can LI ,  Xiaodong SHEN ,  Rakesh TAMRAKAR

IPC: H04W74/08 ,  H04W74/00

Abstract: Embodiments of the present application discloses an information indicating method, a device and a system. The method includes: sending a physical uplink shared channel (PUSCH), wherein the PUSCH bears uplink control information (UCI), the UCI is used to indicate at least one of the following: remaining MCOT information which is used to indicate a remaining maximum channel occupancy time (MCOT) of a channel occupancy time (COT) within which a user equipment (UE) performs uplink transmission, or a target time period. The target time period includes: a time period for allowing a network device to transmit downlink data within COT within which uplink transmission is performed.

公开(公告)号：US20240372675A1

公开(公告)日：2024-11-07

申请号：US18773144

申请日：2024-07-15

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Kaili ZHENG ,  Yuan SHI ,  Rakesh TAMRAKAR

IPC: H04L5/00

Abstract: This application discloses an SRS port mapping method and apparatus, and a terminal. The method includes: mapping, by a terminal, M port groups to N OFDM symbols, where M and N are both integers greater than or equal to 1, M is greater than or equal to N, ports of a target SRS include ports of one or more SRS resources, and the ports of the SRS resources are formed by the M port groups.

公开(公告)号：US20240275551A1

公开(公告)日：2024-08-15

申请号：US18641593

申请日：2024-04-22

Applicant: VIVO MOBILE COMMUNICATION CO., LTD.

Inventor： Kaili ZHENG ,  Jiangwei YUAN ,  Qianyao REN ,  Rakesh TAMRAKAR

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0051 ,  H04W24/10

Abstract: A channel state information CSI measurement method, a terminal, and a network-side device. The CSI measurement method of embodiments of this application includes: sending, by the network-side device, CSI measurement configuration information to the terminal, where the CSI measurement configuration information is used for configuring a target CSI measurement resource associated with measurement of target CSI information; and receiving, by the network-side device, the target CSI information from the terminal. The target CSI information includes at least one of the following: Doppler shift, Doppler spread, Doppler spectrum, time domain channel correlation matrix, delay spread, average delay, delay spectrum, and frequency domain channel correlation matrix.