WO2019170065A1 - Procédé et dispositif de transmission de données, dispositif d'accès au réseau et support de stockage - Google Patents

Procédé et dispositif de transmission de données, dispositif d'accès au réseau et support de stockage Download PDF

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Publication number
WO2019170065A1
WO2019170065A1 PCT/CN2019/076910 CN2019076910W WO2019170065A1 WO 2019170065 A1 WO2019170065 A1 WO 2019170065A1 CN 2019076910 W CN2019076910 W CN 2019076910W WO 2019170065 A1 WO2019170065 A1 WO 2019170065A1
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WO
WIPO (PCT)
Prior art keywords
network
fec
user terminal
parameter
access device
Prior art date
Application number
PCT/CN2019/076910
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English (en)
Chinese (zh)
Inventor
汪伊明
罗勇
Original Assignee
华为技术有限公司
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Publication date
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Publication of WO2019170065A1 publication Critical patent/WO2019170065A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6375—Control signals issued by the client directed to the server or network components for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6408—Unicasting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
    • H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64784—Data processing by the network
    • H04N21/64792—Controlling the complexity of the content stream, e.g. by dropping packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
    • H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet

Definitions

  • IPTV Internet Protocol Television
  • the data is transmitted by the business party device to the user terminal.
  • the service device provides an image service to the user terminal
  • the service device sends an image frame to the user terminal.
  • Image frames can be classified into three types according to encoding, which are I frames, P frames, and B frames.
  • I frame is a completely encoded frame.
  • the P frame is generated for the I frame before the reference P frame and to the frame including the difference portion encoded with the I frame.
  • the B frame is a frame generated by the frame before and after the reference B frame.
  • the service server and the user terminal transmit data through the WiFi
  • the network access device intercepts the channel parameter information sent by the service server, and detects whether the channel parameter information indicates that the user terminal starts the FEC receiving function. If it is determined that the channel parameter information does not indicate that the user terminal starts the FEC receiving function, the network access device acquires the network performance parameter, and determines whether to control the user terminal to open the FEC receiving function according to the network performance parameter. Ensure that the user terminal can enable the FEC receiving function in the case of poor network performance in the WiFi environment, and recover the lost media data packet between the service server and the user terminal by using the FEC packet received after the FEC receiving function is enabled. Avoid losing image frames, which improves the service quality of IPTV.
  • the network performance parameter includes a network quality parameter
  • the network performance degradation condition includes a network quality degradation condition
  • the data transmission method further includes: the network access device obtaining a network quality level based on the network quality parameter, where the network quality level includes a first network quality level and a second network quality level, the first network The network quality characterized by the quality level is higher than the network quality characterized by the second network quality level; the network access device sets the FEC encoding parameter according to the network quality level, and the FEC encoding parameter is used for the FEC encoding of the network access device, and the first network quality level The packet loss recovery rate of the corresponding FEC encoding parameter is lower than the packet loss recovery rate of the FEC encoding parameter corresponding to the second network quality level.
  • the FEC code is adjusted to adjust the packet loss recovery rate to achieve a balance between data recovery and resource occupation.
  • the channel parameter information includes an FEC-enabled port identifier
  • the control module is specifically configured to: add a valid port identifier to the channel parameter information, where the valid port identifier is a port in the user terminal that supports the FEC receiving function.
  • the port identifier is sent to the user terminal, and the control module is specifically configured to: modify the FEC-enabled port identifier that does not support the FEC receiving function in the channel parameter information, and modify the identifier into the user terminal. Supporting the port identifier of the port that enables the FEC receiving function; and transmitting the channel parameter information including the modified FEC-enabled port identifier to the user terminal.
  • the network performance parameter includes a network quality parameter
  • the network performance degradation condition includes a network quality degradation condition
  • FIG. 5 is a schematic structural diagram of hardware of a network access device according to an embodiment of the present application.
  • the network performance parameters include network quality parameters
  • the network performance degradation conditions include network quality degradation conditions.
  • the network quality deterioration condition is a condition for judging whether the quality of the network between the service server and the user terminal is deteriorated. If the network quality parameter satisfies the network quality deterioration condition, it may be determined that the network quality between the service server and the user terminal is deteriorated, and the network performance may be deteriorated.
  • the network access device can control the user terminal to enable the FEC receiving function.
  • the network access device can also perform FEC encoding.
  • network quality parameters include packet loss rate.
  • the network quality deterioration condition is that the packet loss rate is greater than the security packet loss rate.
  • the network access device may also obtain a network congestion level based on network congestion parameters.
  • the network congestion level includes a first network congestion level and a second network congestion level.
  • the degree of network congestion characterized by the first network congestion level is higher than the degree of network congestion characterized by the second network congestion level.
  • the first network congestion level and the second network congestion level are two relative levels. For example, if the network congestion severity is ranked from high to low, the network congestion level B1, the network congestion level B2, and the network congestion level B3 are obtained. For the network congestion level B1 and the network congestion level B2, the network congestion level B1 is the first network congestion level, and the network congestion level B2 is the second network congestion level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention se rapporte au domaine technique des communications. La présente invention concerne un procédé et un dispositif de transmission de données, un dispositif d'accès au réseau et un support de stockage. Le procédé de transmission de données comprend les étapes suivantes : un dispositif d'accès au réseau intercepte des informations de paramètre de canal délivrées par un serveur de service à un terminal d'utilisateur, détecte si les informations de paramètre de canal donnent ou non l'instruction au terminal d'utilisateur d'activer une fonction de réception à correction aval des erreurs (FEC) ; si les informations de paramètre de canal ne donnent pas l'instruction au terminal d'utilisateur d'activer la fonction de réception FEC, alors le dispositif d'accès au réseau acquiert un paramètre de performances de réseau d'une communication de données entre le serveur de service et le terminal d'utilisateur ; le dispositif d'accès au réseau détecte si le paramètre de performances de réseau satisfait ou non un critère de dégradation de performances de réseau ; et si le paramètre de performances de réseau satisfait le critère de dégradation de performances de réseau, alors le dispositif d'accès au réseau amène le terminal d'utilisateur à activer la fonction de réception FEC. L'utilisation de la solution technique de la présente invention empêche la perte de trames d'image, augmentant ainsi la qualité de service de l'IPTV.
PCT/CN2019/076910 2018-03-07 2019-03-05 Procédé et dispositif de transmission de données, dispositif d'accès au réseau et support de stockage WO2019170065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810186681.3A CN110248257B (zh) 2018-03-07 2018-03-07 数据传输方法、装置、网络接入设备和存储介质
CN201810186681.3 2018-03-07

Publications (1)

Publication Number Publication Date
WO2019170065A1 true WO2019170065A1 (fr) 2019-09-12

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CN113300869B (zh) * 2020-07-29 2022-06-14 阿里巴巴集团控股有限公司 带内网络遥感功能通信方法、网络设备及存储介质

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CN101729320A (zh) * 2009-12-14 2010-06-09 华为技术有限公司 传输控制方法和接入设备及传输系统
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US20080256409A1 (en) * 2007-04-16 2008-10-16 Cisco Technology, Inc. Hybrid corrective scheme for dropped packets
CN101119338A (zh) * 2007-09-20 2008-02-06 腾讯科技（深圳）有限公司 网络语音通信方法、系统、装置和即时通信终端
CN101616139A (zh) * 2008-06-24 2009-12-30 华为技术有限公司 下一代网络中传输多媒体业务的方法、系统、及装置
CN103354615A (zh) * 2013-06-24 2013-10-16 西安交通大学 基于信号强度的直播视频数据传输差错控制方法
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CN110248257A (zh) 2019-09-17

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