公开(公告)号：US20200052944A1

公开(公告)日：2020-02-13

申请号：US16659310

申请日：2019-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi ZHANG ,  Fengwei LIU ,  Lei CHEN ,  Minghui XU

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: A PTRS processing method and an apparatus. The method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level, so that PTRS collision between terminals can be avoided to an extent, thereby improving phase tracking precision.

公开(公告)号：US20200022135A1

公开(公告)日：2020-01-16

申请号：US16579347

申请日：2019-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi ZHANG ,  Minghui XU

IPC: H04W72/04 ,  H04L5/00 ,  H04B17/10 ,  H04B17/345 ,  H04W72/08

Abstract: A wireless communication method, including: obtaining, by a network device, at least one of information that is about sharing a local oscillator by a plurality of transceiver units and that is sent by a terminal device, information that is about phase noise errors measured on a plurality of phase tracking reference signal ports and that is sent by the terminal device, isolation between a plurality of channels used to carry phase tracking reference signals, and status information of the channels used to carry the phase tracking reference signals; determining port configuration information of a phase tracking reference signal based on the at least one of the information about sharing a local oscillator, the information about the phase noise errors, the isolation between the plurality of channels used to carry the phase tracking reference signals, and the status information of the channels used to carry the phase tracking reference signals.

公开(公告)号：US20190342137A1

公开(公告)日：2019-11-07

申请号：US16518574

申请日：2019-07-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi ZHANG ,  Minghui XU ,  Lei CHEN

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/20

Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.

公开(公告)号：US20190132247A1

公开(公告)日：2019-05-02

申请号：US16232942

申请日：2018-12-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xi ZHANG ,  Lei CHEN ,  Mao YAN

IPC: H04L12/801 ,  H04L12/26 ,  H04L12/24

Abstract: A signal transmission method and apparatus are provided. The method includes: obtaining, by a transmitter, a to-be-sent data block; inserting one or more pilot blocks among a plurality of pieces of data of the to-be-sent data block based on an agreed position; and sending, by the transmitter, the to-be-sent data block into which the one or more pilot blocks are inserted. Inserting the one or more pilot blocks among the plurality of pieces of data of the to-be-sent data block can improve a phase noise compensation effect for a receiver without increasing pilot overheads.

公开(公告)号：US20240179587A1

公开(公告)日：2024-05-30

申请号：US18432215

申请日：2024-02-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong YUAN ,  Xi ZHANG ,  Bo FAN

IPC: H04W36/00 ,  H04L5/00 ,  H04W72/231

CPC classification number: H04W36/0072 ,  H04L5/0094 ,  H04W72/231

Abstract: A communication method and apparatus are provided, to improve cross-cell beam indication performance. The method is includes: A network device generates first information and sends the first information to a terminal device, where the first information indicates to activate a first transmission configuration indicator (TCI) state of a candidate target cell; and the terminal device receives the first information, activates the first TCI state of the candidate target cell based on the first information. The terminal device can activate the first TCI state of the candidate target cell based on an indication of the network device.

公开(公告)号：US20240147452A1

公开(公告)日：2024-05-02

申请号：US18404052

申请日：2024-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong YUAN ,  Bo FAN ,  Xi ZHANG

IPC: H04W72/044

CPC classification number: H04W72/046

Abstract: A beam configuration method, an apparatus, and a communication system. The method includes: a terminal device receives a beam configuration message, where the beam configuration message indicates a new beam. The terminal device may determine, at a time at which first duration starting from a first moment is reached, to use the new beam for communication. The first moment is a moment at which the terminal device switches to the new beam. In this case, the terminal device and the network node on which the old beam is located, and/or the terminal device and the network node on which the new beam is located can have consistent understandings on an effective time of the new beam, to achieve accurate communication.

公开(公告)号：US20240031845A1

公开(公告)日：2024-01-25

申请号：US18474468

申请日：2023-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo FAN ,  Xi ZHANG ,  Lei CHEN ,  Shitong YUAN ,  Fengwei LIU ,  Yongping ZHANG

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0035

Abstract: A communication method and apparatus. The method includes: receiving first configuration information from a radio access network device, where the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources; performing channel measurement based on the plurality of channel measurement resources to obtain a first measurement result; and sending the first measurement result to the radio access network device, where the first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs including two channel measurement resources, the two channel measurement resources respectively belong to the two groups of channel measurement resources, and the joint channel measurement result includes information about the first resource pair.

公开(公告)号：US20230361827A1

公开(公告)日：2023-11-09

申请号：US18352125

申请日：2023-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo FAN ,  Xi ZHANG ,  Lei CHEN ,  Shitong YUAN ,  Fengwei LIU

IPC: H04B7/06 ,  H04W72/232 ,  H04W72/0446 ,  H04L1/1812

CPC classification number: H04B7/0617 ,  H04W72/232 ,  H04W72/0446 ,  H04L1/1812

Abstract: Embodiments of this application provide a beam management method and an apparatus, to efficiently notify a beam, avoid a complex and redundant indication instruction, and reduce signaling overheads. The method includes: A terminal device receives beam configuration information from a network device, where the beam configuration information includes configuration information of one or more common beams, and the one or more common beams include any one of the following: a separate common beam used for uplink transmission or downlink transmission and a joint common beam used for uplink transmission and downlink transmission. The terminal device receives beam activation information from the network device, where the beam activation information is used to activate some of the one or more common beams. The terminal device receives beam indication information from the network device, where the beam indication information indicates one or more of the some common beams.

公开(公告)号：US20220337302A1

公开(公告)日：2022-10-20

申请号：US17735710

申请日：2022-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng GUAN ,  Xi ZHANG ,  Min ZHANG

IPC: H04B7/06 ,  H04B17/309 ,  H04B7/0426 ,  H04B7/08

Abstract: This application provides a communication method, a terminal device, and a network device. The method includes: using, by a terminal device, a first receive parameter to receive control information sent by a network device, where the control information is used to indicate a second receive parameter used by the terminal device to receive a to-be-transmitted signal; determining, by the terminal device based on a first antenna panel to which the first receive parameter belongs and a second antenna panel to which the second receive parameter belongs, a beam switching time required for switching from the first receive parameter to the second receive parameter; and receiving, by the terminal device, the to-be-transmitted signal based on the beam switching time.

公开(公告)号：US20220337298A1

公开(公告)日：2022-10-20

申请号：US17855605

申请日：2022-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tie LI ,  Yongping ZHANG ,  Xi ZHANG

IPC: H04B7/06

Abstract: A signal transmission method provided in embodiments of the present invention may include the following steps: A network device sends configuration information to a terminal device, where the configuration information includes service periodicity information of an antenna panel. The terminal device activates, based on the configuration information, an antenna panel associated with the configuration information. The implementation can implement flexible scheduling modes, and can be applicable to various antenna switching scenarios when a specific combination is configured, to optimize system performance.