公开(公告)号：US20240249731A1

公开(公告)日：2024-07-25

申请号：US18603770

申请日：2024-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiting LI ,  Bin WANG ,  Zexin LIU

IPC: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/08

CPC classification number: G10L19/008 ,  G10L19/0208 ,  G10L19/08 ,  G10L2019/0001

Abstract: An audio signal encoding method is provided. According to the method, if a current frame is a switching frame, a to-be-encoded downmixed signal and a to-be-encoded residual signal of the subband corresponding to the preset frequency band in the current frame are obtained based on a switch fade-in/fade-out factor of a previous frame, an initial downmixed signal and an initial residual signal of the preset frequency band of the current frame.

公开(公告)号：US20240112684A1

公开(公告)日：2024-04-04

申请号：US18532085

申请日：2023-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuai LIU ,  Yuan GAO ,  Bingyin XIA ,  Bin WANG ,  Zhe WANG

IPC: G10L19/002 ,  G10L19/008 ,  H04S7/00

CPC classification number: G10L19/002 ,  G10L19/008 ,  H04S7/00

Abstract: Embodiments of this application disclose a three-dimensional audio signal processing method and apparatus, to implement bit allocation of a signal. The method includes: performing spatial coding on a to-be-coded three-dimensional audio signal, to obtain a transmission channel signal and transmission channel attribute information, where the transmission channel signal includes at least one virtual speaker signal group and at least one residual signal group; and determining a bit allocation ratio of the virtual speaker signal group and a bit allocation ratio of the residual signal group based on the transmission channel attribute information.

公开(公告)号：US20240087580A1

公开(公告)日：2024-03-14

申请号：US18511191

申请日：2023-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuan GAO ,  Shuai LIU ,  Bin WANG ,  Zhe WANG

IPC: G10L19/008 ,  G10L19/02 ,  G10L19/16 ,  H04S7/00

CPC classification number: G10L19/008 ,  G10L19/0204 ,  G10L19/167 ,  H04S7/00 ,  H04S2420/11

Abstract: This application discloses a three-dimensional audio signal coding method. After obtaining a fourth quantity of coefficients for a current frame of a three-dimensional audio signal and frequency domain feature values of the fourth quantity of coefficients, an encoder selects a third quantity of representative coefficients from the fourth quantity of coefficients based on the frequency domain feature values of the fourth quantity of coefficients, and selects a second quantity of representative virtual speakers for the current frame from a candidate virtual speaker set based on the third quantity of representative coefficients, and then encodes the current frame based on the second quantity of representative virtual speakers for the current frame to obtain a bitstream. The encoder selects the representative virtual speakers from the candidate virtual speaker set by using a small quantity of representative coefficients to represent all coefficients.

公开(公告)号：US20230352034A1

公开(公告)日：2023-11-02

申请号：US18350969

申请日：2023-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Eyal SHLOMOT ,  Haiting LI ,  Bin WANG

IPC: G10L19/20 ,  G10L19/24 ,  H04S3/00 ,  G10L19/008

CPC classification number: G10L19/008 ,  G10L19/20 ,  G10L19/24 ,  H04S3/008 ,  H04S2420/03

Abstract: This disclosure provides a encoding method, and an encoder for a multi-channel signal. The encoding method includes: obtaining a first ITD of a current frame of a multi-channel signal includes an initial left channel signal and an initial right channel signal; obtaining a second ITD of the current frame based on the first ITD and a third ITD of a previous frame of the multi-channel signal; performing delay alignment on the initial left channel signal and the initial right channel signal based on the second ITD, to obtain an aligned left channel signal and an aligned right channel signal; and encoding the aligned left channel signal and the aligned right channel signal.

公开(公告)号：US20230298600A1

公开(公告)日：2023-09-21

申请号：US18202553

申请日：2023-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuan GAO ,  Shuai LIU ,  Bin WANG ,  Zhe WANG ,  Tianshu QU ,  Jiahao XU

IPC: G10L19/008

CPC classification number: G10L19/008

Abstract: An audio encoding and decoding method and apparatus, and a non-transitory readable storage medium are provided. The encoding method includes: selecting a first target virtual speaker from a preset virtual speaker set based on a current scene audio signal; generating a first virtual speaker signal based on the current scene audio signal and attribute information of the first target virtual speaker; and encoding the first virtual speaker signal to obtain a bitstream. According to the encoding method, an amount of encoded data is reduced, to improve encoding efficiency.

公开(公告)号：US20230154472A1

公开(公告)日：2023-05-18

申请号：US18154451

申请日：2023-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhi WANG ,  Jiance DING ,  Bin WANG ,  Haiting LI ,  Zhe WANG

IPC: G10L19/008 ,  G10L25/21 ,  G10L19/002

CPC classification number: G10L19/008 ,  G10L25/21 ,  G10L19/002

Abstract: Disclosed are a multi-channel audio signal encoding method and apparatus. Audio signals of P channels in a current frame of a multi-channel audio signal can be obtained, where the audio signals of the P channels include audio signals of K channel pairs; respective bit quantities of the K channel pairs are determined based on the respective energy/amplitudes of the audio signals of the P channels and a quantity of available bits; and the audio signals of the P channels are encoded based on the respective bit quantities of the K channel pairs to obtain an encoded bitstream, to improve encoding quality.

公开(公告)号：US20230133252A1

公开(公告)日：2023-05-04

申请号：US17976474

申请日：2022-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan GAO ,  Jiance DING ,  Bin WANG

IPC: G10L19/002

Abstract: The present disclosure provides a bit allocation method and apparatus for an audio signal. The bit allocation method for an audio signal includes: obtaining T audio signals in a current frame, where T is a positive integer; determining a first audio signal set based on the T audio signals, where the first audio signal set includes M audio signals, M is a positive integer, T ≥ M; determining M priorities of the M audio signals in the first audio signal set; and performing bit allocation on the M audio signals based on the M priorities of the M audio signals.

公开(公告)号：US20220393957A1

公开(公告)日：2022-12-08

申请号：US17886739

申请日：2022-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Ying CHEN ,  Rong LI ,  Bin WANG

IPC: H04L43/0864

Abstract: Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (Timing Advance, TA) by a terminal, and reduce inter-symbol interference (Inter-Symbol Interference, ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.

公开(公告)号：US20220264636A1

公开(公告)日：2022-08-18

申请号：US17735601

申请日：2022-05-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Rong LI ,  Bin WANG ,  Jun WANG

IPC: H04W74/00 ,  H04W74/08

Abstract: This application provides a random access method and apparatus, and a device. The network device obtains a first random access preamble length of a first terminal device and a second random access preamble length of a second terminal device, where a value of delay compensation performed by the network device when receiving a first random access preamble is different from a value of delay compensation performed by the network device when receiving a second random access preamble. The network device determines a first random access parameter of the first terminal device and a second random access parameter of the second terminal device based on the first random access preamble length and the second random access preamble length, where there is an overlapping part, in time domain, between a random access preamble indicated by the first random access parameter and a random access preamble indicated by the second random access parameter.

公开(公告)号：US20210242934A1

公开(公告)日：2021-08-05

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: H04B7/185 ,  H04W72/12 ,  H04W4/029

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.