Main and standby code stream switching implementing device, method and system for mobile multimedia broadcast system

A mobile multimedia and code stream switching technology, applied in the field of PMS code stream input active-standby switching, can solve problems such as affecting user experience, long time, interference, etc., to reduce the difficulty and complexity of implementation, avoid long-term interruption, Reliable and efficient switching effect

A mobile multimedia and code stream switching technology, applied in the field of PMS code stream input active-standby switching, can solve problems such as affecting user experience, long time, interference, etc., to reduce the difficulty and complexity of implementation, avoid long-term interruption, Reliable and efficient switching effect

CN101389013AInactive Publication Date: 2009-03-18ZTE CORP
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  • Main and standby code stream switching implementing device, method and system for mobile multimedia broadcast system
  • Main and standby code stream switching implementing device, method and system for mobile multimedia broadcast system
  • Main and standby code stream switching implementing device, method and system for mobile multimedia broadcast system

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035]The main idea of ​​the present invention is that the switcher detects the PMS code stream input by the main equipment, and when detecting that the main PMS code stream input by the main equipment is abnormal, the switcher will automatically switch to the standby PMS code stream input by the standby equipment stream as its output code stream, no need for communication between the main and backup devices and the switcher for switching. Further, the switch of the present invention is different from the existing mechanical switch (such as an electronic relay) when switching, but simultaneously receives the PMS code stream of the main and backup equipment to different buffers, and outputs the code stream corresponding to the main equipment when normal. The data in the buffer is used as the output code stream. When switching, the data in the b...

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Abstract

The invention provides a main spare bit rate switching realizing apparatus, method and system of mobile multimedia broadcast system; the system comprises a main spare device, a spare device and a switcher; the main spare device inputs the main bit rate, the spare device inputs the spare bit rate to the switcher; the switcher takes the main spare bit rate input by the main device as the output bit rate; wherein, the switcher detects the main bit rate input by the main device; when the main bit rate is detected abnormal, the spare bit rate input by the main bit rate is switched as the output bit rate. The invention utilizes switcher to separately monitor the bit rate to realize the main spare proposal; the main spare switching function is realizing without communication holding between main device, spare device and the switcher. The invention reduces the time delay when switches the main spare input bit rate, thereby avoiding interpreting the bit rate transmission business long time running in the system.

Description

technical field [0001] The present invention relates to the main-standby switching technology in the mobile multimedia broadcasting system, in particular to the equipment, method and system for realizing the main-standby switching of PMS (Packaged Multiplexing Stream, packaged multiplexing stream) code stream input. Background technique [0002] At present, there are many mobile digital TV standards in the world, including T-DMB (Terrestrial-DigitalMultimedia Broadcasting, terrestrial digital multimedia broadcasting), DVB-H (Digital Video Broadcasting-Handheld, handheld digital video broadcasting), MediaFlo (Media Forward LinkOnly, only forward link), MBMS (Multimedia Broadcast / Multicast Service, Multimedia Broadcast Multicast Service), T-MMB (Terrestrial-Mobile Multimedia Handheld, Digital Multimedia Broadcasting - Ground / Handheld) and CMMB (China Mobile Multimedia Broadcasting, China Mobile Multimedia Broadcasting). With the current development of various technologies, th...

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Application Information

Patent Timeline
18 Mar 2009
Publication
CN101389013A
IPC
H04N7/24; H04N21/236
Inventors
肖金锽; 朱剑平