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公开(公告)号：US11265601B2
公开(公告)日：2022-03-01
申请号：US16931938
申请日：2020-07-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Li Xue , Yihong Huang , Youqing Yang
IPC: H04N21/442 , H04N21/6437 , H04N17/00 , H04N21/44 , H04N21/647
Abstract: A video quality assessment method includes obtaining a video quality assessment parameter of a to-be-assessed video, where the video quality assessment parameter of the to-be-assessed video includes an average packet loss gap of the to-be-assessed video, determining packet loss dispersion of the to-be-assessed video based on the video quality assessment parameter of the to-be-assessed video, and determining quality of the to-be-assessed video based on a packet loss rate of the to-be-assessed video, an average consecutive packet loss length of the to-be-assessed video, the packet loss dispersion of the to-be-assessed video, and attribute information of the to-be-assessed video.
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公开(公告)号：US20210176408A1
公开(公告)日：2021-06-10
申请号：US17180568
申请日：2021-02-19
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jinhui Zhang , Jie Xiong , Ji Li , Wenbin Liu
Abstract: Disclosed are a method, an apparatus, and a system for implementing video stream switching. The method can determine switching reference information of a first reference frame trailer packet of a first video stream and switching reference information of a second reference frame trailer packet of a second video stream, when receiving a switching instruction; and switch from the first video stream sent through the target egress port to the second video stream based on the switching reference information of the first switching packet and the switching reference information of the second switching packet. Because locations of data packets sent before and after switching are considered during video stream switching, damage caused by a switching operation to a transmitted video image can be effectively reduced.
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公开(公告)号：US10917114B2
公开(公告)日：2021-02-09
申请号：US16433985
申请日：2019-06-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Chen Zheng , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses a data transmission method, a sending device, a receiving device, and a communications system. The sending device is configured to send a first transport block. The sending device obtains a coded bit segment from a first encoded code block. The first encoded code block is obtained after LDPC encoding is performed on a first code block in the first transport block based on a processing capability of the receiving device. The sending device sends the coded bit segment to the receiving device. Because the processing capability of the receiving device is considered, storage overheads of the sending device or the receiving device can be reduced, encoding or decoding complexity can be reduced, and a decoding success rate can be improved.
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公开(公告)号：US10659195B2
公开(公告)日：2020-05-19
申请号：US16262921
申请日：2019-01-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Zheng , Liang Ma , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses an information processing method. A communication device obtains an input sequence. The input sequence has a quantity B of information bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks individually, to obtain one or more encoded code blocks. Each of the code blocks has a code block length less than or equal to a maximum code block length. Each of the code blocks includes a segment of the input sequence and may include one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence. The encoded code blocks can meet various channel coding requirements.
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公开(公告)号：US10285086B2
公开(公告)日：2019-05-07
申请号：US15233646
申请日：2016-08-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Tang , Ming Li , Yuejun Wei , Jie Xiong
Abstract: Embodiments disclose a channel decoding method and apparatus, and a distributed decoder. A channel decoding apparatus includes: a decoding information acquiring unit, configured to acquire demodulation information of a channel; a channel decoding algorithm unit, configured to decode the demodulation information to obtain current decoding information, and perform a cyclic redundancy check CRC check on the current decoding information to obtain a current decoding CRC check result; and a lower level decoding determining unit, configured to: if the current decoding CRC check result is incorrect and a lower level channel decoding apparatus exists, determine that the lower level channel decoding apparatus continues to decode the demodulation information, where decoding performance of a channel decoding algorithm unit in the lower level channel decoding apparatus is superior to decoding performance of the channel decoding algorithm unit in the channel decoding apparatus.
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Patent Agency Ranking
公开(公告)号：US20190110093A1
公开(公告)日：2019-04-11
申请号：US16213221
申请日：2018-12-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qikun Wei , Shen Zhang , Qiujie Fu , Jie Xiong
IPC: H04N21/24 , H04N21/2187 , H04N21/6405 , H04N21/845
Abstract: A hot live video determining method is provided. A network device first obtains a plurality of video request messages for a target video; then determines statistical information of the target video based on the plurality of video request messages, where the statistical information includes a quantity of video request messages for the target video that are obtained in specified duration and fragment information of a video fragment requested in each video request message; and finally determines, based on the statistical information, whether the target video is a hot live video. According to the method, the network device can identify the hot live video in the Internet, so the network device can carry the hot live video in a multicast manner, to avoid breakdown that is of a network and a video server and that is caused by transmitting the hot live video in a unicast method.
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公开(公告)号：US11310489B2
公开(公告)日：2022-04-19
申请号：US17067645
申请日：2020-10-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Xiong , Youqing Yang , Yihong Huang
IPC: H04N7/12 , H04N17/04 , H04N21/44 , H04N19/169 , H04N19/114 , H04N19/154 , H04N17/00
Abstract: The present invention discloses a method, an apparatus, and a system for implementing video quality assessment. When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.
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公开(公告)号：US20210204007A1
公开(公告)日：2021-07-01
申请号：US17197156
申请日：2021-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Jinhui Zhang , Ji Li , Zhigui Chen
IPC: H04N21/236 , H04N21/438 , H04N21/234 , H04N21/44
Abstract: Embodiments of the present invention disclose a video stream switching method. The method includes: A transmission device receives a plurality of video streams of a first video and a plurality of video streams of a second video; sends the plurality of video streams of the first video through target output ports respectively corresponding to the plurality of video streams of the first video; after receiving a switching instruction, determines switching reference information of a reference end-of-frame packet of each video stream of the first video and the second video, and then determines switching reference information of a switching packet of the video stream; and switches from the plurality of video streams of the first video to the plurality of video streams of the second video based on the switching reference information of the switching packet of each video stream.
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公开(公告)号：US09214958B2
公开(公告)日：2015-12-15
申请号：US14488168
申请日：2014-09-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Yuejun Wei
CPC classification number: H03M13/1108 , G06F11/1004 , H03M13/09 , H03M13/2957 , H03M13/2966 , H03M13/3707 , H03M13/451 , H03M13/613
Abstract: Embodiments of the present invention provide a method and a decoder for processing decoding. The method includes: acquiring a combined generator matrix Gcom of a Turbo code generator matrix Gturbo and a cyclic redundancy check CRC generator matrix Gcrc, and acquiring a log likelihood ratio sequence outputted by a Turbo code decoder; and performing CRC-assisted iterative ordered statistics decoding of a Turbo code by using the combined generator matrix Gcom and the log likelihood ratio sequence, so as to obtain a decoding processing result. A decoding performance gain can be improved by using the method and the device for decoding a Turbo code provided in the embodiments of the present invention.
Abstract translation: 本发明的实施例提供了一种用于处理解码的方法和解码器。 该方法包括：获取Turbo码生成矩阵Gturbo的组合生成矩阵Gcom和循环冗余校验CRC生成矩阵Gcrc，并获取Turbo码解码器输出的对数似然比序列; 并通过使用组合的生成矩阵Gcom和对数似然比序列来执行Turbo码的CRC辅助迭代排序统计解码，以获得解码处理结果。 通过使用本发明实施例中提供的用于解码Turbo码的方法和装置，可以提高解码性能增益。
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公开(公告)号：US11995375B2
公开(公告)日：2024-05-28
申请号：US17345689
申请日：2021-06-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chao Liu , Jie Xiong , Jinhui Zhang , Lihong Feng
IPC: G06F3/16 , G10L19/008
CPC classification number: G06F3/165 , G10L19/008
Abstract: This application discloses an audio stream switching method and apparatus. After a switching device receives a switching instruction, the switching device determines a synchronization relationship between a switch-in stream and a switch-out stream, determines a parameter value of a switching point of the switch-in stream based on the synchronization relationship and a timestamp of a packet in the switch-in stream, and determines a timestamp of a switching point of the switch-out stream based on the synchronization relationship and a timestamp of a packet in the switch-out stream, and/or the switching device switches a packet that is in the switch-out stream and whose parameter value is greater than the parameter value of the switching point of the switch-out stream to a packet that is in the switch-in stream and whose parameter value is greater than the parameter value of the switching point of the switch-in stream.
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