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公开(公告)号：US20190139560A1
公开(公告)日：2019-05-09
申请号：US16238797
申请日：2019-01-03
Applicant: Huawei Technologies Co., Ltd.
IPC: G10L19/03 , G10L19/26 , G10L21/038 , G10L19/12
Abstract: An encoding method, a decoding method, an encoding apparatus, a decoding apparatus, a transmitter, a receiver, and a communications system, where the encoding method includes dividing a to-be-encoded time-domain signal into a low band signal and a high band signal, performing encoding on the low band signal to obtain a low frequency encoding parameter, performing encoding on the high band signal to obtain a high frequency encoding parameter, obtaining a synthesized high band signal; performing short-time post-filtering processing on the synthesized high band signal to obtain a short-time filtering signal, and calculating a high frequency gain based on the high band signal and the short-time filtering signal.
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132.发明授权公开(公告)号：US09954662B2
公开(公告)日：2018-04-24
申请号：US15148932
申请日：2016-05-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Yuqing Zhao , Huailin Wen
IPC: H04L1/00 , H04L5/00 , H04W88/08 , H04B7/0413 , H04L12/42
CPC classification number: H04L5/0048 , H04B7/0413 , H04L12/422 , H04W88/08
Abstract: A board includes: a baseband unit, multiple transmitters, multiple receivers, a multi-antenna array, a correction transceiver, a correction calculation unit, a bidirectional coupler, and a combiner-splitter. The bidirectional coupler is configured to couple radio frequency signals output by the multiple transmitters and then transmit the coupled radio frequency signals to the combiner-splitter, and to couple receiver correction reference signals obtained by performing division by the combiner-splitter and then send the coupled receiver correction reference signals to the multiple receivers; and the combiner-splitter is configured to combine transmitter radio frequency signals coupled by the bidirectional coupler and then transmit the combined transmitter radio frequency signals to the correction transceiver, and to divide a receiver correction reference signal sent by the correction transceiver and then send receiver correction reference signals obtained by performing division to the coupler. Accuracy of channel reciprocity correction of a transmitter and a receiver can be ensured.
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公开(公告)号：US20180075853A1
公开(公告)日：2018-03-15
申请号：US15817296
申请日：2017-11-20
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
IPC: G10L19/083 , G10L21/038 , G10L19/02 , G10L25/93 , G10L21/0388 , G10L19/005 , G10L19/24
CPC classification number: G10L19/083 , G10L19/005 , G10L19/0204 , G10L19/24 , G10L21/038 , G10L21/0388 , G10L25/93 , G10L2025/932
Abstract: A method for recovering a lost frame in a received audio signal includes: obtaining an initial high-frequency band signal of a current lost frame in the received audio signal; calculating a ratio R, wherein the ratio R is a ratio of a high frequency excitation energy of a previous frame of the current lost frame to a high frequency excitation energy of the current lost frame; obtaining a global gain of the current lost frame according to the ratio R and a global gain of the previous frame of the current lost frame; and recovering a high-frequency band signal of the current lost frame according to the initial high-frequency band signal of the current lost frame and the global gain of the current lost frame. The method can be used in an audio signal decoding process for low-loss recovery of lost frames of the audio signal.
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公开(公告)号：US09852738B2
公开(公告)日：2017-12-26
申请号：US15385881
申请日：2016-12-21
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
IPC: G10L19/005 , G10L21/038 , G10L21/0388 , G10L19/083 , G10L19/02 , G10L25/93 , G10L19/24
CPC classification number: G10L19/083 , G10L19/005 , G10L19/0204 , G10L19/24 , G10L21/038 , G10L21/0388 , G10L25/93 , G10L2025/932
Abstract: Embodiments of the present application provide a method and an apparatus for recovering a lost frame in a received audio signal. The method for recovering a lost frame includes: determining an initial high-frequency band signal of a current lost frame; determining a gain of the current lost frame; determining gain adjustment information of the current lost frame; adjusting the gain of the current lost frame according to the gain adjustment information, to obtain an adjusted gain of the current lost frame; and adjusting the initial high-band signal according to the adjusted gain, to obtain a high-frequency band signal of the current lost frame. The method and the apparatus for recovering a lost frame provided in the embodiments of the present application can be used in an audio signal decoding process for low-loss recovery of a lost frame of the audio signal, resulting in improved performance of an audio signal decoder.
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公开(公告)号：US20170352358A1
公开(公告)日：2017-12-07
申请号：US15686175
申请日：2017-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/02 , G10L19/002
CPC classification number: G10L19/0204 , G10L19/002 , G10L19/02
Abstract: Present disclosure pertains to an audio signal processing method and device. A current frame of a frequency-domain audio signal has N frequency sub-bands. According to an energy attribute and a spectral attribute of a first subset of M sub-bands, whether to adjust envelope values of the M sub-bands is determined. Based on a determination that the energy envelope values of the M sub-bands need to be adjusted, the energy envelope values of the M sub-bands are modified individually to obtain modified envelope values of the M sub-bands. Encoding bits are allocated to each of the N sub-bands according to the adjusted envelope values of the M sub-bands and energy envelope information of K sub-bands of a second subset. The first subset and the second subset have no overlap in frequency, and N=M+K.
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Patent Agency Ranking
136.发明授权公开(公告)号：US09805736B2
公开(公告)日：2017-10-31
申请号：US14704502
申请日：2015-05-05
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: G10L21/0388 , G10L19/0204 , G10L19/08 , G10L19/24 , G10L19/265 , G10L21/038 , G10L25/93
Abstract: An audio signal encoding and decoding method, an audio signal encoding and decoding apparatus, a transmitter, a receiver, and a communications system, which can improve encoding and/or decoding performance. The audio signal encoding method includes dividing a to-be-encoded time domain signal into a low band signal and a high band signal; encoding the low band signal to obtain a low frequency encoding parameter; calculating a voiced degree factor, and predicting a high band excitation signal; weighting the high band excitation signal and random noise using the voiced degree factor, so as to obtain a synthesized excitation signal; and obtaining a high frequency encoding parameter based on the synthesized excitation signal and the high band signal. Technical solutions in the embodiments of the present invention can improve an encoding or decoding effect.
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公开(公告)号：US20170238187A1
公开(公告)日：2017-08-17
申请号：US15582039
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang
CPC classification number: H04W16/10 , H04L43/0888 , H04W72/02 , H04W72/04 , H04W72/0413 , Y02D70/00 , Y02D70/1262
Abstract: Embodiments provide an access method and device. The method includes: sending, by a user terminal, a carrier extension request to a base station when a current service resource demand is greater than a specified threshold, where the carrier extension request is used to request the base station to allocate an available spectrum resource; receiving the available spectrum resource sent by the base station. The method also includes obtaining through calculation, according to the current service resource demand and the available spectrum resource, a quantity of antenna channels that need to be enabled, and enabling an antenna channel corresponding to the quantity of antenna channels. The method also includes sending an access request to the base station, where the access request carries the antenna channel that is to be enabled by the user terminal.
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公开(公告)号：US20170103764A1
公开(公告)日：2017-04-13
申请号：US15385881
申请日：2016-12-21
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
IPC: G10L19/083 , G10L19/02 , G10L25/93 , G10L19/005
CPC classification number: G10L19/083 , G10L19/005 , G10L19/0204 , G10L19/24 , G10L21/038 , G10L21/0388 , G10L25/93 , G10L2025/932
Abstract: Embodiments of the present application provide a method and an apparatus for recovering a lost frame in a received audio signal. The method for recovering a lost frame includes: determining an initial high-frequency band signal of a current lost frame; determining a gain of the current lost frame; determining gain adjustment information of the current lost frame; adjusting the gain of the current lost frame according to the gain adjustment information, to obtain an adjusted gain of the current lost frame; and adjusting the initial high-band signal according to the adjusted gain, to obtain a high-frequency band signal of the current lost frame. The method and the apparatus for recovering a lost frame provided in the embodiments of the present application can be used in an audio signal decoding process for low-loss recovery of a lost frame of the audio signal, resulting in improved performance of an audio signal decoder.
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公开(公告)号：US09419833B2
公开(公告)日：2016-08-16
申请号：US14830609
申请日：2015-08-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wang , Zhiqiang Liao , Bin Wang , Ruiming Ding
CPC classification number: H04L27/18 , H01Q3/2605 , H01Q3/38 , H01Q21/24
Abstract: A phase control method in the present disclosure includes dividing, by a power divider, the high frequency current into at least two current branches, and separately feeding the at least two current branches into corresponding radio frequency input ports on a digital phase shifter, determining, by the switch controller according to the digital control flow, radio frequency paths that are in the digital phase shifter and for the at least two current branches fed into the digital phase shifter, and controlling the drive voltage to act on the digital phase shifter, and separately establishing, by the digital phase shifter according to the drive voltage and for the at least two current branches, radio frequency paths for currents to flow through, and controlling duration of phase delays for the at least two current branches by controlling lengths of the radio frequency paths through which the at least two current branches flow.
Abstract translation: 本公开的相位控制方法包括：通过功率分配器将高频电流分成至少两个电流分支，并且将所述至少两个电流分支分别馈送到数字移相器上的对应的射频输入端口， 根据数字控制流程的开关控制器，数字移相器中的射频路径和馈送到数字移相器中的至少两个电流分支，以及控制驱动电压作用在数字移相器上，以及 根据驱动电压和对于至少两个电流分支，数字移相器分别建立用于电流流过的射频路径，并且通过控制无线电的长度来控制至少两个当前分支的相位延迟的持续时间 所述至少两个电流分支通过所述频率路径流动。
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公开(公告)号：US20160056982A1
公开(公告)日：2016-02-25
申请号：US14830609
申请日：2015-08-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Wang , Zhiqiang Liao , Bin Wang , Ruiming Ding
CPC classification number: H04L27/18 , H01Q3/2605 , H01Q3/38 , H01Q21/24
Abstract: A phase control method in the present disclosure includes dividing, by a power divider, the high frequency current into at least two current branches, and separately feeding the at least two current branches into corresponding radio frequency input ports on a digital phase shifter, determining, by the switch controller according to the digital control flow, radio frequency paths that are in the digital phase shifter and for the at least two current branches fed into the digital phase shifter, and controlling the drive voltage to act on the digital phase shifter, and separately establishing, by the digital phase shifter according to the drive voltage and for the at least two current branches, radio frequency paths for currents to flow through, and controlling duration of phase delays for the at least two current branches by controlling lengths of the radio frequency paths through which the at least two current branches flow.
Abstract translation: 本公开的相位控制方法包括：通过功率分配器将高频电流分成至少两个电流分支，并且将所述至少两个电流分支分别馈送到数字移相器上的对应的射频输入端口， 根据数字控制流程的开关控制器，数字移相器中的射频路径和馈送到数字移相器中的至少两个电流分支，以及控制驱动电压作用在数字移相器上，以及 根据驱动电压和对于至少两个电流分支，数字移相器分别建立用于电流流过的射频路径，并且通过控制无线电的长度来控制至少两个当前分支的相位延迟的持续时间 所述至少两个电流分支通过所述频率路径流动。
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