WO2016058279A1 - Procédé de transmission de données multi-chemins basé sur une évaluation de qualité - Google Patents

Procédé de transmission de données multi-chemins basé sur une évaluation de qualité Download PDF

Info

Publication number
WO2016058279A1
WO2016058279A1 PCT/CN2015/000221 CN2015000221W WO2016058279A1 WO 2016058279 A1 WO2016058279 A1 WO 2016058279A1 CN 2015000221 W CN2015000221 W CN 2015000221W WO 2016058279 A1 WO2016058279 A1 WO 2016058279A1
Authority
WO
WIPO (PCT)
Prior art keywords
calling
client
called
channel
audio
Prior art date
Application number
PCT/CN2015/000221
Other languages
English (en)
Chinese (zh)
Inventor
钱晓炯
陈兴桃
刘谦
Original Assignee
钱晓炯
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 钱晓炯 filed Critical 钱晓炯
Publication of WO2016058279A1 publication Critical patent/WO2016058279A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks

Definitions

  • the invention relates to a multi-path data transmission method based on quality evaluation.
  • Real-time audio and video transmission over IP networks can use a variety of paths, including forwarding through media servers, peer-to-peer transmission, and more.
  • the advantage of forwarding through the media server is that complicated operations such as point-to-point penetration are not required, and the audio and video data at both ends of the communication can be directly intercommunicated, the success rate of the connection can be almost 100%, and the connection speed is fast; the disadvantage of forwarding through the media server is communication.
  • the overall traffic bottleneck is constrained by the bandwidth of the media server accessing the network, and the media server side also has the traffic cost. Point-to-point transmission is just the opposite.
  • the advantage is that the overall communication traffic does not depend on the bandwidth of the media server accessing the network, and the cost of the media server is low.
  • the disadvantage is that the peer-to-peer operation is required, the connection speed is slow, and it may not be able to connect, and the point-to-point is simple.
  • the transmission method has a success rate of approximately 90%.
  • the transmission quality of media server forwarding and peer-to-peer transmission sometimes this is good sometimes.
  • the peer-to-peer transmission effect is often better than that of the media server.
  • the two clients are in the same LAN, and the peer-to-peer effect is mostly Ok.
  • the media server forwarding effect is often better than the point-to-point transmission.
  • these analyses can only be roughly predicted, and the actual network quality should be based on actual testing.
  • FIG. 1 shows a structure of a media server forwarding mode.
  • Client 1 and client 2 respectively access the carrier network through a router, and the media server is deployed on the public network; the data of the two clients is directly forwarded to the other party through the media server.
  • FIG. 2 shows a peer-to-peer transmission mechanism, which is the simplest peer-to-peer network penetration method.
  • the STUN server has a public network address, and the client accessed through the router can access it through the public network address.
  • the NAT function of the router translates the intranet address of client 1 into a public network IP address plus port, and the data sent by other network elements on the public network to this address and port will be transferred.
  • the client 1, the STUN server will send the public IP address plus the port to the client 2, so if the two clients send data to the public network address and port at the same time, most of the cases are able to pass.
  • the point-to-point transmission mechanism needs to go through a detection process, and the connection time is inevitably long. At the same time, due to the difference of routers, the above mechanism cannot penetrate 100% of the various routers on the market.
  • the technical problem to be solved by the present invention is to provide a quality evaluation-based multipath data transmission method with fast connection speed, high connection success rate, and effective consideration of network cost.
  • the technical solution adopted by the present invention to solve the above technical problem is: a multi-path data transmission method based on quality evaluation, which is characterized in that:
  • different clients connect to different media servers according to the principle of proximity, and then when the calling client initiates audio and video communication to the called client, the calling client and the called client first pass through the 0th channel.
  • the nearest media server connected to the calling client is called the calling media server, and the nearest media server connected to the called client is called the called media server.
  • the data transmission path of the 0th channel is: The calling client sends the calling audio and video data to the calling media server, and the calling media server forwards the calling audio and video data to the called media server, and the called media server forwards the calling audio and video data.
  • the called client sends the called audio and video data to the called media server, and the called media server forwards the called audio and video data to the calling media server, the calling end
  • the media server forwards the called audio and video data to the calling client;
  • the data transmission path of the first channel is: the calling client sends the calling audio and video data to the calling media server, and then the calling media server forwards the calling audio and video data to the called client; Similarly, the called client sends the called audio and video data to the called media server, and then the called media server forwards the called audio and video data to the calling client;
  • the data transmission path of the second channel and the second channel is: the calling client sends the calling audio and video data to the called media server, and then the called media server forwards the calling audio and video data to the called client: Similarly, the called client sends the called audio and video data to the calling media server, and then the calling media server forwards the called audio and video data to the calling client;
  • the data transmission path of the third channel and the third channel is: a point-to-point transmission mechanism between the calling client and the called client;
  • the calling client or/and the called client simultaneously send the network quality detection packet to the above four channels. Therefore, the network quality of the above four channels is detected, and then the network path quality scores of the above four channels are respectively obtained, and finally the main intersection The channel with the highest network path quality score is selected between the client and the called client for audiovisual data transmission.
  • the method provided by the present invention can support the transmission of media data in multiple channels at the same time. This mode is applicable to the path bottleneck not being on the access side of the terminal, and in the middle of the path, the transmission throughput of a single path can be increased.
  • the network quality detection packet of the currently applied channel between the calling client and the called client is a custom data packet header added before the calling audio and video data or the called audio and video data
  • the customized data packet header includes The header type, channel number, serial number, timestamp, and data stream type; and the network quality probe packets sent by the other three channels include the aforementioned custom packet header plus IP/UDP packet header.
  • the network quality probe packets sent by the calling client or/and the called client to the four channels are simultaneously transmitted, and the total size of the four network quality probe packets simultaneously transmitted to the four channels does not exceed the calling party. 5% of audio and video data or called audio and video data.
  • the size of the aforementioned custom packet header is 5 bytes, and the IP/UDP packet header is 55 bytes.
  • the calling client or/and the called client are separated by a fixed time to send network quality detection packets to the above four channels, thereby re-detecting the network quality of the above four channels, and respectively obtaining the above four channels.
  • the new network path quality score, the main network client and the called client select the channel with the highest network path quality score for the transmission of audiovisual data.
  • score is the network path quality score
  • clip3 is a finite function, that is, to ensure that the output value is between 0 and 100
  • factor (path) is the weighting factor of the connection mode, depending on the server cost, the factor (path) of the different connection mode Set in advance;
  • Td(0) represents the unidirectional path delay of the 0th channel
  • Td(0) T0-t0-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T0 is sent by the calling client through the 0th channel.
  • the time of the calling audio and video data, t0 is the time when the called client receives the calling audio and video data at the moment;
  • Td(1) represents the unidirectional path delay of the first channel
  • Td(1) T1-t1-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T1 is sent by the calling client through the first channel.
  • t1 is the time when the called client receives the calling audio and video data at the moment.
  • Td(2) represents the unidirectional path delay of the second channel
  • Td(2) T2-t2-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T2 is sent by the calling client through the second channel.
  • the moment when the calling audio and video data is called, t2 is the moment when the called client receives the calling audio and video data at the moment;
  • Td(3) indicates the unidirectional path delay of the third channel
  • Td(3) T3-t3-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T3 is sent by the calling client through the third channel.
  • Td_min min(Td(0), Td(1), Td(2), Td(3));
  • Rtt_min min(rtt(0), rtt(1), rtt(2), rtt(3)), and rtt(0) represents the round-trip path delay of channel 0; rtt(1) represents the round-trip of channel 1 Path delay; rtt(2) represents the round-trip path delay of the second channel; rtt(3) represents the round-trip path delay of the third channel;
  • Yl -29.43ln(PLR)-29.637; PLR is the data packet loss rate under different channels.
  • the factor (path) is always equal to 1. If the forwarding cost of the media server is considered, the weighting factor of the media server forwarding mode can be set to 1, the calling media server forwarding mode and the called media server. The weighting factor of the forwarding mode is set to 2, and the weighting factor of the point-to-point mode is set to 4.
  • the present invention has the advantages that the method provided by the present invention solves the problem of the connection speed between two clients, and also dynamically manages the network path quality of different paths to optimize the network path.
  • the transmission of audiovisual data is performed.
  • FIG. 1 is a structural block diagram of a media server forwarding mode in the prior art
  • FIG. 2 is a structural block diagram of a mechanism of point-to-point transmission in the prior art
  • FIG. 3 is a block diagram showing the connection of the 0th channel in the embodiment of the present invention.
  • FIG. 4 is a block diagram showing the connection of the first channel in the embodiment of the present invention.
  • Figure 5 is a block diagram showing the connection of the second channel in the embodiment of the present invention.
  • Figure 6 is a block diagram showing the connection of the third channel in the embodiment of the present invention.
  • FIG. 7 is a structural diagram of a custom data packet header according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of calculation of a relative one-way path delay according to an embodiment of the present invention.
  • the multi-path data transmission method based on quality evaluation provided by the invention first solves the problem of the connection speed, that is, different clients are connected to different media servers according to the principle of proximity, and then the calling client initiates to the called client.
  • the calling client and the called client first connect through the 0th channel;
  • the nearest media server connected to the calling client is called the calling media server, and the nearest media server connected to the called client is called the called media server;
  • the data transmission path of the 0th channel is: the calling client sends the calling audio and video data to the calling media server, and the calling media server forwards the calling audio and video data to the called media.
  • the server, the called media server forwards the calling audio and video data to the called client;
  • the called client sends the called audio and video data to the called media server, and the called media server forwards the called audio and video data to the calling media server, and the calling media server will be called.
  • the video data is forwarded to the calling client;
  • this method achieves the fastest connection between the calling client and the called client.
  • the first channel, the second channel, and the third channel can also be connected between the calling client and the called client:
  • the data transmission path of the first channel is: the calling client sends the calling audio and video data to the calling end media server, and then the calling media server forwards the calling audio and video data to the called party.
  • Calling the client likewise, the called client sends the called audio and video data to the called media server, and then the called media server forwards the called audio and video data to the calling client;
  • the data transmission path of the second channel is: the calling client sends the calling audio and video data to the called media server, and then the called media server forwards the calling audio and video data to the called client.
  • the called client sends the called audio and video data to the calling media server, and then the calling media server forwards the called audio and video data to the calling client;
  • the data transmission path of the third channel is: a point-to-point transmission mechanism between the calling client and the called client;
  • the calling client or/and the called client simultaneously send the network quality detection packet to the above four channels. Therefore, the network quality of the above four channels is detected, and the network path quality scores of the above four channels are respectively obtained, and finally the channel with the highest network path quality score is selected between the primary client and the called client to perform audiovisual data. Transmission.
  • the network quality detection packet of the currently applied channel between the calling client and the called client is added to the master.
  • the definition of the IP/UDP packet header is a conventional technique, and will not be described in detail here.
  • the network quality probe packet sent by the channel is 60 bytes, and the network quality probe packets sent by the calling client or/and the called client to the four channels are sent simultaneously, and four times are sent simultaneously to the four channels.
  • the total size of the network quality detection packet does not exceed 5% of the calling audio and video data or the called audio and video data. This method can achieve very fast quality status update frequency, which is easy to understand. A small amount of data, the network path will inevitably reduce the frequency of monitoring, the network sensitivity to changes in the signal quality decreases.
  • the worst case update period is up to about 34 seconds.
  • the method provided in this embodiment sends a network quality probe packet to four channels at the same time, and the total size of the four network quality probe packets does not exceed the calling audio and video data or is Calling 5% of audio and video data can increase the update cycle to about 11 times efficiency. That is, in the case of the same traffic and the same accuracy, the worst case update cycle takes only about 3 seconds to send a larger audio and video bit rate.
  • the present invention performs quality status update at a frequency of up to 1 time per second, at which time the amount of redundancy of the probe packet is much less than 5%.
  • the calling client or/and the called client are simultaneously sent to the four channels to send a network quality detection packet at a fixed time, thereby re-detecting the network quality of the above four channels, thereby obtaining the above four channels respectively.
  • the network path quality score, the main network client and the called client select the channel with the highest network path quality score for the transmission of audiovisual data.
  • the present invention also solves the problem of delay estimation in a single direction of four channels.
  • the traditional RTCP method can only calculate the round-trip time delay rtt (Round-Trip Time) of the path, and the calculation method is a conventional method in the prior art.
  • the round-trip path delay rtt of the path includes the sum of delays in both directions of the sender and the receiver, so the delay in a single direction cannot be accurately evaluated.
  • the present invention can obtain the relative delay in a single direction on the four channels, and obtain 4 pieces.
  • the quality status of the path in a single direction is used to make the best choice. Specifically, the network path quality score is obtained by the following formula.
  • score is the network path quality score
  • clip3 is a finite function, that is, to ensure that the output value is between 0 and 100
  • factor (path) is the weighting factor of the connection mode, depending on the server cost, different connections
  • the mode factor (path) of the mode is set in advance;
  • Td(0) represents the unidirectional path delay of the 0th channel
  • Td(0) T0-t0-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T0 is sent by the calling client through the 0th channel.
  • the time of the calling audio and video data, t0 is the time when the called client receives the calling audio and video data at the moment;
  • Td(1) represents the unidirectional path delay of the first channel
  • Td(1) T1-t1-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T1 is sent by the calling client through the first channel.
  • t1 is the time when the called client receives the calling audio and video data at the moment;
  • Td(2) represents the unidirectional path delay of the second channel
  • Td(2) T2-t2-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T2 is sent by the calling client through the second channel.
  • the moment when the calling audio and video data is called, t2 is the moment when the called client receives the calling audio and video data at the moment;
  • Td(3) indicates the unidirectional path delay of the third channel
  • Td(3) T3-t3-deltaT
  • deltaT is the time difference between the calling client and the called client
  • T3 is sent by the calling client through the third channel.
  • Td_min min(Td(0), Td(1), Td(2), Td(3));
  • Rtt_min min(rtt(0), rtt(1), rtt(2), rtt(3)), and rtt(0) represents the round-trip path delay of channel 0; rtt(1) Indicates the round-trip path delay of the first channel; rtt(2) represents the round-trip path delay of the second channel; rtt(3) represents the round-trip path delay of the third channel;
  • the invention eliminates the time difference deltaT of two clients, obtains a relative one-way delay delay of four paths, and Td_min and rtt_min are iteratively updated through the statistical window, and another advantage of the present invention is that only according to each channel With one piece of data, the result can be obtained, which greatly saves the flow of the probe packet;
  • Yl -29.43ln(PLR)-29.637; PLR is the data packet loss rate under different channels.
  • the factor (path) is always equal to 1, and simply consider the forwarding cost of the server. You can set the weighting factor of the 0th channel to 1, and the weighting factor of the 1st channel and the 2nd channel to 2, the 3rd channel. The weighting factor is 4. In short, according to the size of the server cost, the importance of serving customers, dynamic adjustment of the factor (path).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé de transmission de données multi-chemins basé sur une évaluation de qualité, comprenant les opérations suivantes : premièrement, différents clients sont connectés à différents serveurs multimédias selon un principe de proximité, ensuite, lorsqu'un client appelant initie une communication audio/vidéo avec un client appelé, le client appelant et le client appelé sont connectés l'un à l'autre par l'intermédiaire d'un 0ième canal, les données audio/vidéo sont transférées à un serveur multimédia d'extrémité appelante, et le serveur multimédia d'extrémité appelante transfère les données audio/vidéo appelées au client appelant ; et lorsque le client appelant et le client appelé sont connectés l'un à l'autre par l'intermédiaire du 0ième canal, le client appelant et le client appelé sont également connectés l'un à l'autre par démarrage de trois autres canaux, et sélection du canal ayant le score le plus élevé de qualité de chemin de réseau pour une transmission de données audio/vidéo. Par comparaison avec l'état de la technique, le problème de vitesse pour joindre quelqu'un entre deux clients est résolu ; et également, la qualité de chemin de réseau de différents chemins est gérée de manière dynamique, et des données audio/vidéo sont transmises par l'intermédiaire du chemin de réseau optimal.
PCT/CN2015/000221 2014-10-16 2015-03-31 Procédé de transmission de données multi-chemins basé sur une évaluation de qualité WO2016058279A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410548340.8 2014-10-16
CN201410548340.8A CN104410509B (zh) 2014-10-16 2014-10-16 一种基于质量评价的多路径数据传输方法

Publications (1)

Publication Number Publication Date
WO2016058279A1 true WO2016058279A1 (fr) 2016-04-21

Family

ID=52648107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/000221 WO2016058279A1 (fr) 2014-10-16 2015-03-31 Procédé de transmission de données multi-chemins basé sur une évaluation de qualité

Country Status (2)

Country Link
CN (1) CN104410509B (fr)
WO (1) WO2016058279A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019217578A1 (fr) * 2018-05-09 2019-11-14 Netsurion Llc Protocole de datagramme utilisateur à trajets multiples
US10616621B2 (en) 2018-06-29 2020-04-07 At&T Intellectual Property I, L.P. Methods and devices for determining multipath routing for panoramic video content
US10623791B2 (en) 2018-06-01 2020-04-14 At&T Intellectual Property I, L.P. Field of view prediction in live panoramic video streaming
US10708494B2 (en) 2018-08-13 2020-07-07 At&T Intellectual Property I, L.P. Methods, systems and devices for adjusting panoramic video content
US10812774B2 (en) 2018-06-06 2020-10-20 At&T Intellectual Property I, L.P. Methods and devices for adapting the rate of video content streaming
US11019361B2 (en) 2018-08-13 2021-05-25 At&T Intellectual Property I, L.P. Methods, systems and devices for adjusting panoramic view of a camera for capturing video content
CN114039955A (zh) * 2021-11-05 2022-02-11 安徽电信规划设计有限责任公司 基于人工智能的通信安全监控系统
CN114553453A (zh) * 2020-11-25 2022-05-27 国网山东省电力公司济宁供电公司 反向隔离状态监控方法、系统、可读存储介质及服务器
CN117081973A (zh) * 2023-10-13 2023-11-17 腾讯科技（深圳）有限公司 数据包传输方法、装置、设备、介质和计算机程序产品

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410509B (zh) * 2014-10-16 2018-01-05 宁波菊风系统软件有限公司 一种基于质量评价的多路径数据传输方法
CN106656649B (zh) * 2016-09-14 2021-01-01 腾讯科技（深圳）有限公司 一种实时通话过程中基于测速的通道切换方法、客户端与服务器
CN106792798B (zh) * 2016-11-28 2020-09-11 北京奇虎科技有限公司 移动终端远程协助的连线探测方法及装置
CN107370764B (zh) * 2017-09-05 2020-06-05 北京奇艺世纪科技有限公司 一种音视频通信系统及音视频通信方法
CN108234309B (zh) * 2017-12-27 2020-10-27 宁波菊风系统软件有限公司 一种网络数据的传输方法
CN108833434B (zh) * 2018-07-02 2020-09-08 山东云缦智能科技有限公司 一种基于ip双向网络机顶盒的跨网视频通话系统的实现方法
CN111107113A (zh) * 2018-10-25 2020-05-05 中国移动通信集团广东有限公司 一种视频数据传输方法和装置
CN110247955A (zh) * 2019-05-21 2019-09-17 菜鸟智能物流控股有限公司 一种无人车的通信方法和无人车
CN112367493B (zh) * 2021-01-14 2021-06-01 游密科技(深圳)有限公司 数据传输控制方法、装置、移动终端及存储介质
CN112788053A (zh) * 2021-01-25 2021-05-11 深圳市欢太科技有限公司 一种实时通信方法、装置、服务器、系统及存储介质
CN114172967B (zh) * 2021-12-14 2023-10-31 广州市百果园网络科技有限公司 媒体服务器分配方法、装置、设备及存储介质
CN115208864B (zh) * 2022-08-12 2024-02-06 阿波罗智联(北京)科技有限公司 数据传输方法、装置、设备、车辆及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102843725A (zh) * 2012-08-15 2012-12-26 无锡北邮感知技术产业研究院有限公司 一种数据传输方法及装置
CN103905458A (zh) * 2014-04-11 2014-07-02 北京云视天创网络科技有限公司 一种基于互联网的流媒体传输方法
CN104410509A (zh) * 2014-10-16 2015-03-11 宁波菊风系统软件有限公司 一种基于质量评价的多路径数据传输方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102843728A (zh) * 2011-06-22 2012-12-26 中兴通讯股份有限公司 一种提高用户下行、上行吞吐量的方法及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102843725A (zh) * 2012-08-15 2012-12-26 无锡北邮感知技术产业研究院有限公司 一种数据传输方法及装置
CN103905458A (zh) * 2014-04-11 2014-07-02 北京云视天创网络科技有限公司 一种基于互联网的流媒体传输方法
CN104410509A (zh) * 2014-10-16 2015-03-11 宁波菊风系统软件有限公司 一种基于质量评价的多路径数据传输方法

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019217578A1 (fr) * 2018-05-09 2019-11-14 Netsurion Llc Protocole de datagramme utilisateur à trajets multiples
US11716644B2 (en) 2018-05-09 2023-08-01 Acumera, Inc. Multi-path user datagram protocol
US11641499B2 (en) 2018-06-01 2023-05-02 At&T Intellectual Property I, L.P. Field of view prediction in live panoramic video streaming
US11190820B2 (en) 2018-06-01 2021-11-30 At&T Intellectual Property I, L.P. Field of view prediction in live panoramic video streaming
US10623791B2 (en) 2018-06-01 2020-04-14 At&T Intellectual Property I, L.P. Field of view prediction in live panoramic video streaming
US10812774B2 (en) 2018-06-06 2020-10-20 At&T Intellectual Property I, L.P. Methods and devices for adapting the rate of video content streaming
US10616621B2 (en) 2018-06-29 2020-04-07 At&T Intellectual Property I, L.P. Methods and devices for determining multipath routing for panoramic video content
US10708494B2 (en) 2018-08-13 2020-07-07 At&T Intellectual Property I, L.P. Methods, systems and devices for adjusting panoramic video content
US11019361B2 (en) 2018-08-13 2021-05-25 At&T Intellectual Property I, L.P. Methods, systems and devices for adjusting panoramic view of a camera for capturing video content
US11671623B2 (en) 2018-08-13 2023-06-06 At&T Intellectual Property I, L.P. Methods, systems and devices for adjusting panoramic view of a camera for capturing video content
CN114553453A (zh) * 2020-11-25 2022-05-27 国网山东省电力公司济宁供电公司 反向隔离状态监控方法、系统、可读存储介质及服务器
CN114039955A (zh) * 2021-11-05 2022-02-11 安徽电信规划设计有限责任公司 基于人工智能的通信安全监控系统
CN114039955B (zh) * 2021-11-05 2024-04-05 安徽电信规划设计有限责任公司 基于人工智能的通信安全监控系统
CN117081973A (zh) * 2023-10-13 2023-11-17 腾讯科技（深圳）有限公司 数据包传输方法、装置、设备、介质和计算机程序产品
CN117081973B (zh) * 2023-10-13 2024-02-02 腾讯科技（深圳）有限公司 数据包传输方法、装置、设备、介质和计算机程序产品

Also Published As

Publication number Publication date
CN104410509B (zh) 2018-01-05
CN104410509A (zh) 2015-03-11

Similar Documents

Publication Publication Date Title
WO2016058279A1 (fr) Procédé de transmission de données multi-chemins basé sur une évaluation de qualité
EP1335525B1 (fr) Méthode peer-to-peer pour sonder la qualité de service (QOS)
US8171123B2 (en) Network bandwidth detection and distribution
US9094315B2 (en) Systems and methods for measuring available capacity and tight link capacity of IP paths from a single endpoint
US11388292B2 (en) Monitoring voice-over-IP performance over the internet
US8064348B2 (en) Gathering traffic profiles for endpoint devices that are operably coupled to a network
US10455194B1 (en) Robust handling of sudden changes of bandwidth in selective forwarding unit conferences
US9838209B2 (en) Method for subscribing to streams from multicast clients
WO2018176496A1 (fr) Procédé, dispositif et système de détection de qualité de service iptv
Arsan Review of bandwidth estimation tools and application to bandwidth adaptive video streaming
Sankar et al. Routing protocol convergence comparison using simulation and real equipment
Chodorek et al. A comparison of QoS parameters of WebRTC videoconference with conference bridge placed in private and public cloud
Karl et al. Multimedia optimized routing in OpenFlow networks
Wang et al. TCP-friendly congestion control for the fair streaming of scalable video
Adibi Traffic Classification œ Packet-, Flow-, and Application-based Approaches
Banchuen et al. An SDN framework for video conference in inter-domain network
US20220124017A1 (en) Pinpointing sources of jitter in network flows
Cao et al. Background Traffic‐Based Retransmission Algorithm for Multimedia Streaming Transfer over Concurrent Multipaths
Nor et al. Enhancing DCCP congestion control mechanism for long delay link
Akiyama et al. Active packet dropping for improving performance fairness among modern TCPs
JP2002204255A (ja) 伝送レート制御装置及び伝送レート制御方法
Sha et al. A performance evaluation method and it's implementation for web service
Wang et al. Multipath live streaming via tcp: Performance and benefits
Li et al. Do twin clouds make smoothness for transoceanic video telephony?
Rao et al. TFRC for congestion control in wired Environment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15850595

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15850595

Country of ref document: EP

Kind code of ref document: A1