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Synchronous method, synchronous device and terminal for quickly accessing into multicast group

A synchronization device and multicast group technology, applied in the field of communication, can solve problems such as information transmission error, user experience effect degradation, and affect the normal use of end user services, so as to achieve the effect of improving experience effect

Active Publication Date: 2014-06-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In streaming media multicast applications such as IPTV, video conferencing, and distance education, excessive delays between terminals degrade user experience, and even lead to information transmission errors, affecting the normal use of end-user services

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  • Synchronous method, synchronous device and terminal for quickly accessing into multicast group
  • Synchronous method, synchronous device and terminal for quickly accessing into multicast group
  • Synchronous method, synchronous device and terminal for quickly accessing into multicast group

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] see figure 1 , propose a kind of synchronous method embodiment of fast access multicast group of the present invention, it comprises steps:

[0052] Step S101, judging whether the multicast data sent by the multicast server is independently decodable frame multicast data;

[0053] Step S102, when the multicast data is non-independently decodable frame multicast data, re-encode the non-independently decodable frame multicast data into independently decodable frame multicast data;

[0054] Step S103, according to the quick access multicast group request sent by the terminal, select independently decodable frame multicast data for initial playback;

[0055]Step S104, sending the independently decodable frame multicast data and subsequent multicast data to the terminal.

[0056] The independently decodable frame...

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Abstract

Disclosed are a synchronization method and synchronization apparatus for multicast group quick access, and a terminal. The method includes: determining whether multicast data sent by a multicast server are frame multicast data that can be independently decoded, and re-coding the multicast data into frame multicast data that can be independently decoded when the multicast data are frame multicast data that cannot be independently decoded; selecting, according to a request from the terminal, frame multicast data for initial playing that can be independently decoded; and sending the selected frame multicast data for initial playing that can be independently decoded and subsequent multicast data to the terminal. The disclosure allows synchronous playing of multicast data on different terminals, thus improving terminal user experience.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a synchronization method, a synchronization device and a terminal for quickly accessing a multicast group. Background technique [0002] At present, in the field of multicast video technology, it is an important technology to reduce the access delay time before a terminal joins a multicast session and reduce the waiting time for frequently switching multicast sessions. [0003] In traditional multicast video services, in order to ensure that terminals joining the multicast group at different times can play video images, the multicast server generally implements it by sending random access points in a fixed period. In addition, in order to allow terminals newly joining the multicast group to quickly present video images, the above-mentioned fixed period is set to be very short. Since the encoding time of the random access point and the size of the encoded frame are much la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/266H04N21/6405
CPCH04N21/6405H04N21/4384H04N21/26616H04N21/2343
Inventor 林亚钟宏李加周阮亚平
Owner ZTE CORP