Method and terminal for implementing mobile multimedia broadcast electronic service guide update
An electronic service guide and mobile multimedia technology, applied in the direction of broadcast information update, broadcast devices, broadcast related systems, etc., can solve the problems of ESG update sequence number unchanged, user roaming, system time resource consumption, etc., to achieve efficient ESG update operation, Avoid comparison work, avoid frequent effects
Inactive Publication Date: 2009-04-29
ZTE CORP
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However, this indication field is a 4-bit field, which is cyclically valued in the range of 0 to 15, and the time when the user turns off the power is an uncertain event. billing, and may even include billing for receiving ESG information), at this time, the ESG update sequence number may not change when the ESG update sequence number is only used at this time, but the ESG has actually been updated; When the ESG information has been updated greatly or has been completely replaced, comparing the ESG basic description table will consume system time and resources
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[0034] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.
[0035] The basic idea of the present invention is: when the update range of ESG information is large, the terminal adopts the update method of re-receiving all; when the ESG information is partially updated, the ESG update instruction is used to find the updated ESG table and sub-table to perform partial update; When the network ownership changes, a more reasonable ESG update method is adopted.
[0036] The specific steps taken are:
[0037] 1. When the terminal receives the ESG for the first time, it saves the ESG and the time information of receiving the ESG;
[0038] In CMMB, the function of multiplexing is to complete the encapsulation and arrangement of audio, video, data, ESG and other information, so that it can be transmitted on the mobile multimedia broadcast channel; and a multiplexing frame consists of multiplexing frame ...
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A method for realizing the update of a mobile multimedia broadcasting electronic service guide ESG comprises the following steps: when a terminal firstly receives the ESG, the terminal saves the ESG and receives time information of the ESG; when the terminal receives the ESG again, whether the conditions of completely re-updating the ESG are met or not is judged according to the currently-received time information of the ESG and the time information of the received ESG saved in the terminal, if so, the terminal completely updates the saved ESG to the ESG received at this time, otherwise, an ESG update instruction carried in the ESG is compared with the value of the ESG update instruction in the saved ESG, and if the two are different, the update of the ESG information which is changed correspondingly is carried out; and the terminal updates the saved time information to currently-received time information of the ESG after the completion of the judgment and the comparison. The use of the method can high efficiently realize the ESG update operation of the terminal.
Description
technical field [0001] The present invention relates to the fields of smart phones and third-generation (3G) mobile phones, in particular to a method and a terminal for updating Electronic Service Guide (ESG) of China Mobile Multimedia Broadcasting (CMMB for short). Background technique [0002] With the popularity of mobile data services, the improvement of mobile phone performance, and the rapid development of digital TV technology and networks, the mobile TV service of watching TV with smart phones with operating systems and video functions has attracted widespread attention. Due to the high penetration rate of mobile phone users and the convenience of carrying mobile phones, the mobile TV business has shown a wider influence than ordinary TV. [0003] As a hot development focus, mobile TV is about to enter a period of large-scale application. More influential abroad are the European standard DVB-H (Digital Video Broadcasting Handheld, digital video broadcasting in hand)...
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IPC IPC(8): H04N7/24H04H60/25
CPCH04N21/41407H04H60/40H04H60/25H04N21/4586H04H60/72
Inventor 王泽民
Owner ZTE CORP