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Communication method and communication device

A communication method and a technology of a communication device, which are applied in the field of communication, and can solve problems such as high signal error rate, degradation of audio resource and video resource quality, and inability to guarantee delivery of data packets to receiving end equipment, etc.

Active Publication Date: 2020-07-07
BEIJING VIAZIJING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Specifically, RTP and RTCP are designed based on UDP (User Datagram Protocol, User Datagram Protocol), and the main defect of UDP protocol is that it cannot guarantee that data packets will be delivered to the receiving end device. Therefore, when the communication quality is poor (such as insufficient bandwidth, traffic congestion, high signal error rate, high inherent loss rate), RTP packets will be lost, resulting in the degradation of the quality of audio resources and video resources
[0004] In related technologies, two schemes, forward error correction and retransmission, are usually used for packet loss RTP. On the one hand, existing packet loss repair schemes are poorly applicable to various audio and video application scenarios; Accurate and efficient evaluation of communication delays, which may lead to data collisions during packet loss repair

Method used

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Experimental program
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Embodiment 1

[0052] figure 1 A schematic flowchart of a communication method according to an embodiment of the present invention is shown.

[0053] Such as figure 1 As shown, the communication method according to an embodiment of the present invention includes: step S102, receiving a packet loss detection message generated by a second terminal based on the real-time transmission control protocol, and the type field of the packet loss detection message includes application indication information of service data, The application indication information of the service data is used to indicate the application service type for real-time transmission of the protocol package; step S104, parsing the packet loss repair custom content written in the application indication information to determine the subtype and name; step S106, in the determining sub When the type code is a preset value and the name is a preset character, a response message confirming the packet loss repair of the real-time transmission...

Embodiment 2

[0069] figure 2 A schematic block diagram of a communication device according to an embodiment of the present invention is shown.

[0070] Such as figure 2 As shown, the communication device 200 according to an embodiment of the present invention includes: a receiving unit 202, configured to receive a packet loss detection message generated by a second terminal based on the real-time transmission control protocol, and the type field of the packet loss detection message includes information about the service data. Application indication information, the application indication information of the service data is used to indicate the application service type of the real-time transmission protocol package; the parsing unit 204 is used to parse the packet loss repair custom content written in the application indication information to determine the subtype and name The sending unit 206 is configured to feed back to the second terminal a response message confirming the packet loss repai...

Embodiment 3

[0086] image 3 A schematic block diagram of a video terminal according to an embodiment of the present invention is shown.

[0087] Such as image 3 As shown, the video terminal 300 according to the embodiment of the present invention includes: figure 2 The communication device 200 is shown.

[0088] Wherein, the above-mentioned communication device 200 can be compatible with or integrated in video terminals such as mobile phones, tablet computers, audio-visual players, monitoring equipment and navigation devices with communication modules. The above-mentioned determining unit 208, computing unit 210, setting unit 212, and analyzing unit 204 It may be the processor (CPU), controller (MCU), embedded micro-control chip, baseband processor, etc. of the communication device 200, and the transmitting unit 206 and receiving unit 202 may be the antenna and carrier modulation module of the communication device 200, etc. The timing unit 214 may be the crystal oscillator module of the comm...

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Abstract

The invention provides a communication method and a communication device. The communication method comprises: receiving a packet loss detection message generated by a second terminal based on a real-time transmission control protocol, wherein the type field of the packet loss detection message comprises application indication information of service data, and the application indication informationof the service data is used for indicating the application service type of a real-time transmission protocol packet; analyzing the packet loss repair custom content written in the application indication information to determine a subtype and a name; and when it is determined that the code of the sub-type is a preset value and the name is a preset character, feeding back a response message for confirming packet loss repair of the real-time transmission protocol packet to the second terminal. Through the technical scheme of the invention, packet loss repair can be carried out on the real-time transmission protocol packet for various application scenes, the data conflict in the packet loss repair process is reduced, the reliability of the packet loss repair scheme is improved, and the sensoryexperience of a user on audio and video resources is further improved.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular, to a communication method and a communication device. Background technique [0002] RTP (Real-time Transport Protocol) provides time information and stream synchronization for end-to-end real-time transmission on the Internet, but does not guarantee the quality of service, which is governed by RTCP (Real-time Transport Control Protocol) To provide. [0003] Specifically, RTP and RTCP are designed based on UDP (User Datagram Protocol, that is, User Datagram Protocol), and the main flaw of the UDP protocol is that it cannot guarantee that the data packet is delivered to the receiving device. Therefore, the communication quality is poor. (Such as insufficient bandwidth, traffic congestion, high signal error rate, and high inherent loss rate), RTP packets will be lost, which will cause the quality of audio resources and video resources to decrease. [0004] In related technolog...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06H04L1/18
CPCH04L43/0829H04L43/0852H04L43/106H04L1/189H04L65/65
Inventor 胡昭程
Owner BEIJING VIAZIJING TECH CO LTD
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