Signal negotiation method and device for realizing RTP data stream multiplexing

A multiplexing and data streaming technology, applied in the field of multimedia communication, can solve the problems of additional, occupation, and affecting the processing performance of the network interface unit, so as to achieve the effect of multiplexing and improve the utilization rate of network bandwidth

Active Publication Date: 2009-12-30
ZTE CORP
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Problems solved by technology

In this case, the RTP multiplexing negotiation information occupies part of the internal RTP resources of the system, and the network interface unit needs to frequently analyze the RTP multiplexing negotiation information from a large number of RTP sessions, which affects the processing performance of the network interface unit. In addition, for some cases where the functions of some business processing units are relatively integrated and single, it is impossible to flexibly add RTP multiplexing information to the RTP session, and it is also impossible to complete the function of RTP multiplexing negotiation

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  • Signal negotiation method and device for realizing RTP data stream multiplexing
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  • Signal negotiation method and device for realizing RTP data stream multiplexing

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Embodiment Construction

[0018] The main idea of ​​the present invention is to respectively set a signaling negotiation module and a forwarding module in the network interface unit of the initiator and the network interface unit of the receiving end, and the signaling negotiation module is used to construct and Processing the RTCP multiplexing negotiation message to realize the multiplexing signaling negotiation; the forwarding module is used to forward the RTCP multiplexing negotiation message received from the external network to the signaling negotiation module in time, and to receive the RTCP multiplexing negotiation message from the signaling negotiation module The RTCP multiplexing negotiation message is forwarded to the external network in time, and at the same time, after the multiplexing negotiation is successful, the RTP message of the connected multiplexing peer is multiplexed (in the sending direction) and demultiplexed according to the agreed RTP header compression option information. (rec...

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Abstract

The invention discloses a signal negotiation method and a signal negotiation device for realizing RTP data stream multiplexing. The method comprises: an initiator enables the RTP data stream multiplexing function of the initiator, and synchronizes RTP multiplexing configuration information to an initiator network interface unit; the initiator network interface unit initiates an RTCP negotiation request to each target receiver according to the RTP multiplexing configuration information; after receiving the RTCP negotiation request, a receiver network interface unit returns an RTCP negotiation response message in the condition that the negotiation is judged to be successful according to receiver RTP multiplexing configuration information, and is ready to perform multiplexing and demultiplexing on an RTP stream connected with the receiver; and the initiator network interface unit receives the RTC negotiation response message, has successful negotiation with the target receiver, and performs the multiplexing and demultiplexing on an RTP data stream connected with the initiator. The method and the device can effectively improve network bandwidth utilization rate.

Description

technical field [0001] The invention relates to the field of multimedia communication, in particular to a signaling negotiation method and device for realizing multiplexing of RTP data streams. Background technique [0002] With the development of multimedia communication, network bandwidth is increasingly becoming a scarce resource. When two large-capacity network devices such as two NGN (Next Generation Network) media gateways communicate, the Layer2 / IP / UDP packet header occupies a large number of bytes compared to the payload data, which reduces bandwidth utilization. Therefore, research on multiplexing RTP (Real-Time Transport Protocol, Real-time Transport Protocol) data packets on several different user plane connections into one Layer2 / IP / UDP packet for transmission can achieve the purpose of saving bandwidth, and at the same time realize For end-to-end RTP multiplexing processing, the corresponding research should also include signaling extensions for packet multiple...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/18
CPCH04W72/1278H04W72/20
Inventor 李纯静张鹏刚
Owner ZTE CORP
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