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A dvb channel fast switching method, device and system

A channel switching and fast switching technology, applied in the media field, can solve the problems of poor user experience, long time for frequency search and locking, slow channel switching speed, etc., to improve user experience, ensure fast display of images, improve The effect of channel switching speed

Active Publication Date: 2020-04-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The channel switching time is an important indicator in QoE, but the current DVB channel switching time depends on the frequency point search and locking of the target channel, and the frequency point search and locking time is relatively long, generally greater than 2 seconds, resulting in channel switching Slow speed and poor user experience

Method used

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  • A dvb channel fast switching method, device and system
  • A dvb channel fast switching method, device and system
  • A dvb channel fast switching method, device and system

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention.

[0042] figure 1 It is a DVB network architecture diagram of the embodiment of the present invention.

[0043] Such as figure 1 As shown, in order to solve the problem of fast switching of DVB channels in the embodiment of the present invention, a Media Relay Function (MRF) subsystem 103 and a Fast Channel Switching (FCC) server 104 are added to the existing DVB network architecture. The MRF subsystem 103 is mainly used for performing RTP protocol encapsulation on the TS stream, suppressing DF (Delay Factor) values, forward error correction (Forward Error Correction, FEC) encoding, etc., and providing reliable RTP streams to the FCC server. The FCC server 104 is used to shorten the channel switching speed by using unicast auxiliary broadcasting. The FCC server buffers the RTP stream received ...

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Abstract

The embodiment of the present invention provides a method for fast switching of DVB channels. An FCC server is introduced into the existing DVB system architecture, and the unicast transmission stream is quickly sent to the user equipment by using the FCC server unicast auxiliary broadcast mode. By comparing DVB and The PTS value of the TS stream on both sides of the FCC is used to synchronize the TS stream and the RTP stream. Ensure that user equipment quickly displays images, shorten channel switching time, increase channel switching speed, and improve user experience.

Description

technical field [0001] The invention relates to the field of media technology, in particular to a method for fast switching of DVB channels based on the DVB system, user equipment and the DVB system. Background technique [0002] DVB (Digital Video Broadcasting, Digital Video Broadcasting) is a series of internationally recognized digital television open standards maintained by the DVB project. The DVB project is an industrial organization composed of more than 300 members. It is composed of the European Telecommunications Standards Institute (ETSI), the European Committee for Electro technical Standardization (CENELEC) and the European Broadcasting Union (European It was initiated by the Joint Technical Committee (JTC) jointly formed by the Broadcasting Union (EBU). The purpose of DVB is to design a general-purpose digital TV system. There is the simplest way to convert between various transmission methods in this system, and to increase the versatility as much as possible...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/222H04N21/266H04N21/43H04N21/437H04N21/438H04N21/6408
CPCH04N21/222H04N21/26616H04N21/4302H04N21/437H04N21/4383H04N21/6408H04N21/266H04N21/43H04N21/438H04N21/4384H04N21/8456
Inventor 陈胜平
Owner HUAWEI TECH CO LTD
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