Method and apparatus for transmitting electronic service guide

Abstract

The invention discloses a method and a device for transmitting an electronic service instruction. The method comprises the steps that: a. address information of an ESG server of a mobile communication network adjacent to a source ESG server of the mobile communication network is stored in the source ESG server of the mobile communication network accessed to a terminal currently; b. when a broadcasting network servicing the terminal is switched to a target broadcasting network, the terminal determines whether the mobile communication network accessed to the terminal is matched with the target broadcasting network or not; if not, the terminal transmits an ESG updating request to the source ESG server, and the source ESG server transmits an address of a target ESG server matched with the target broadcasting network after receiving the ESG updating request; c. the terminal requests the target ESG server to transmit updated ESG according to the received address of the target ESG server. The method and the device ensure that audio signals and video signals sent by the broadcasting network and received by the terminal are matched with terminal ESG, thereby providing services with high quality for users.

Description

technical field [0001] The invention relates to the field of mobile multimedia broadcasting, in particular to an electronic service guide transmission method and device. Background technique [0002] Mobile Multimedia Broadcasting Service (CMMB), also called mobile TV, is a multimedia broadcasting technology emerging in recent years. This technology can realize viewing of TV programs through the terminal, even if the terminal is moving at high speed, it can still be watched. The terminal learns relevant information about the mobile multimedia broadcasting service, such as program name, broadcast time, content summary, price, etc., by receiving an ESG (Electronic Service Guide, electronic service guide). After the user selects the channel he has the right to watch, he can receive the multimedia data of the selected channel, and realize watching TV programs on the terminal. [0003] Currently, the ESGs of different regions are usually stored in the ESG servers of the portals...

AI Technical Summary

Problems solved by technology

[0005] Downloading the ESG from the ESG server through the mobile communication network can give full play to the advantages of the mobile communication network and realize safe and fast downloading, but there are also certain disadvantages, that is, when the terminal enters a roaming place from its home If the broadcast network that provides broadcast signals for it is switched from the broadcast network at its home location (called the source broadcast network) to the broadcast network at the roaming location (that is, the destination broadcast network), but the terminal does not switch from the broadcast network corresponding to the source broadcast network. When the source mobile communication network accesses the roaming mobile communication network (ie, the destination mobile communication network), the ESG stored in the terminal is still the ESG downloaded from the source ESG server of the source mobile communication network, resulting in the ESG stored in the terminal Does not match the broadcast program it receives

[0006] The main reason for this kind of problem is that both the terminal's home location and its roaming location have their own mobile communication network and broadcast network, which will cause the above-mentioned The broadcast network of the terminal is switched from the source broadcast network to the destination broadcast network, but the mobile communication network does not switch accordingly. The attribution is different, resulting in a mismatch between the ESG stored in the terminal and the broadcast programs it receives

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