公开(公告)号：US20240137111A1

公开(公告)日：2024-04-25

申请号：US18400101

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingwei Zhang ,  Tianhang Yu ,  Hejia Luo ,  Shengchen Dai ,  Yunfei Qiao ,  Rong Li ,  Jun Wang

IPC: H04B7/185

CPC classification number: H04B7/18532

Abstract: This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by −1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.

公开(公告)号：US20240080764A1

公开(公告)日：2024-03-07

申请号：US18505389

申请日：2023-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Qiao

IPC: H04W52/02

CPC classification number: H04W52/0225

Abstract: A method includes: a first communication apparatus sending a first request message to a second communication apparatus, where the first request message is for requesting to enter a PSM mode. The second communication apparatus sends a first response message to the first communication apparatus based on the first request message, where the first response message includes first indication information and second indication information, the first indication information indicates the first communication apparatus to enter the PSM mode, the second indication information indicates X wakeup occasion windows for the first communication apparatus in the PSM mode, and X is greater than or equal to 0. The first communication apparatus enters the PSM mode based on the first response message.

公开(公告)号：US11876602B2

公开(公告)日：2024-01-16

申请号：US17239117

申请日：2021-04-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Rongdao Yu ,  Yinggang Du ,  Bin Wang ,  Tianxiang Wang

IPC: H04W4/029 ,  H04B7/185 ,  H04W72/12

CPC classification number: H04B7/18539 ,  H04B7/18513 ,  H04W4/029 ,  H04W72/12

Abstract: The application provides a communication method, an apparatus, and a system that are used in a satellite network. A user terminal receives, on a management channel, a sounding signal sent by a management satellite. The management satellite manages one or more serving satellites. The user terminal sends a respiratory signal to the management satellite. The respiratory signal carries information about the user terminal. The information about the user terminal is used to determine information about a serving satellite that serves the user terminal. The management satellite or a ground station may uniformly schedule the serving satellite to serve the user terminal. When the serving satellite is switched, a negotiation between satellites may be omitted.

公开(公告)号：US11791891B2

公开(公告)日：2023-10-17

申请号：US17684730

申请日：2022-03-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Wang ,  Yunfei Qiao ,  Hejia Luo ,  Xian Meng

IPC: H04B7/185 ,  H04B15/00

CPC classification number: H04B7/18513 ,  H04B7/18558 ,  H04B15/00

Abstract: Example communication methods and communication apparatus are described. One example method includes sending a first message by a first satellite to a second satellite. The first message includes information about a frequency reuse scheme. The information about the frequency reuse scheme includes basic unit information. The basic unit information includes central point locations and frequency information of at least N−1 beams. Herein, N is a frequency reuse factor of the first satellite. At least N−1 different pieces of frequency information exist in the frequency information that is of the at least N−1 beams and that is included in the basic unit information. In addition, N is a positive integer greater than or equal to 3.

公开(公告)号：US11777532B2

公开(公告)日：2023-10-03

申请号：US17587425

申请日：2022-01-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengchen Dai ,  Huazi Zhang ,  Xianbin Wang ,  Lingchen Huang ,  Rong Li ,  Yunfei Qiao

IPC: H03M13/00

CPC classification number: H03M13/616

Abstract: An encoding method includes, when a first code rate K/Nmax is less than or equal to a code rate threshold Rt, reading a first matrix from a preset code table based on a second matrix. The second matrix includes a matrix that is read from the preset code table and that corresponds to a maximum supported code length Nmax and Rt, where K is an integer and N is an integer. The method also includes reading K rows and (N−K) columns starting from a preset first location in the first matrix to obtain a third matrix. The method further includes adding a unit matrix with K rows and K columns to a left side of the third matrix to obtain a generator matrix of an (N, K) linear block code. K rows and (Nmax−Nmax×Rt) columns of the second matrix in a first direction are consistent with K rows and (Nmax−Nmax×Rt) columns of the first matrix in a second direction.

公开(公告)号：US20230308219A1

公开(公告)日：2023-09-28

申请号：US18041780

申请日：2021-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ying Chen ,  Hejia Luo ,  Yunfei Qiao ,  Rong Li ,  Jun Wang

IPC: H04L1/1812

CPC classification number: H04L1/1812

Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.

公开(公告)号：US20230216602A1

公开(公告)日：2023-07-06

申请号：US18170951

申请日：2023-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Wang ,  Yunfei Qiao ,  Jianwei Zhou ,  Xueliang Shi

IPC: H04J14/06 ,  H01Q21/24

CPC classification number: H04J14/06 ,  H01Q21/24

Abstract: This application provides a polarization reconfiguration method and a communication apparatus. A network device may send polarization pre-switching indication information to appropriately schedule and adjust user polarization within a base station or between base stations. A terminal device may switch a polarization mode in advance based on the polarization pre-switching indication information sent by the network device.

公开(公告)号：US20230098837A1

公开(公告)日：2023-03-30

申请号：US17956399

申请日：2022-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Yinggang Du ,  Juan Song

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00

Abstract: This application relates to the field of communication technologies, and discloses a polar coding/decoding method and apparatus, to improve sequence lookup efficiency. The method includes: obtaining a first sequence from a polar code construction sequence table based on a coding parameter, where the polar code construction sequence table includes at least one coding parameter and at least one sequence corresponding to the at least one coding parameter, the coding parameter is mapped to the sequence in a one-to-one manner, the first sequence is one of the at least one sequence; and selecting serial numbers of K polarized channels from the first sequence based on a rate matching scheme and/or a reliability order, placing to-be-coded bits based on the selected serial numbers of the K polarized channels, and performing polar coding, to obtain a coded bit sequence.

公开(公告)号：US11496245B2

公开(公告)日：2022-11-08

申请号：US17209674

申请日：2021-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei Qiao ,  Juan Song ,  Yinggang Du

IPC: H04L1/00

Abstract: A channel encoding method and apparatus. The method includes: obtaining A to-be-encoded information bits; mapping the A to-be-encoded information bits and L CRC bits to a first bit sequence based on an interleaving sequence, where the L CRC bits are obtained based on the A to-be-encoded information bits and a CRC polynomial, the interleaving sequence is obtained from a prestored interleaving sequence table or is obtained based on a maximum-length interleaving sequence, A+L is less than or equal to Kmax, and Kmax is a length of the maximum-length interleaving sequence; and encoding the first bit sequence. In this way, not only an encoding delay can be reduced, but also decoding has an early stop capability, so that decoding can end in advance, thereby reducing a decoding delay.

公开(公告)号：US20220038964A1

公开(公告)日：2022-02-03

申请号：US17504347

申请日：2021-10-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Yu Wang ,  Hejia Luo ,  Xian Meng ,  Yunfei Qiao

IPC: H04W36/00 ,  H04W36/32

Abstract: Embodiments of this application disclose cell handover measurement indication methods, a network device, and a terminal, to improve reliability and real-time performance of cell handover. A cell handover measurement indication method includes: A network device calculates a measurement moment of cell handover based on a measurement event and sends a measurement indication. The measurement event is a location relationship between a terminal and the network device, and the measurement indication is used to indicate the terminal to perform cell handover measurement. The measurement indication sent by the network device may be used to notify the measurement moment of cell handover to the terminal.