Method for updating electronic service guidebooks information

Abstract

The invention discloses an information updating method of an electronic service guide. The method comprises the steps: S402, the electronic service guide body sets up a catalog linked list of the sectional information of the electronic service guide according to a catalog structure of an initialization container of the electronic service guide, wherein, a root node of the catalog linked list is anindex list, a successor node below the root node is a sub index structural linked list, a leaf node below the successor node is a structural linked list of the sectional information of the electronicservice guide; and S404, the electronic service guide body makes a comparison between a container file received from a transmission layer and the catalog linked list of the sectional information of the electronic service guide to ensure whether the sectional information of the electronic service guide is changed or not, the corresponding sectional information of the electronic service guide in the catalog linked list is updated in case that the sectional information of the electronic service guide is changed and the operation is not performed in case that the sectional information of the electronic service guide remains unchanged. The invention reduces the memory resource which is required to save a great deal of ESG information effectively and realizes the ergodicity to the ESG sectionalinformation with high efficiency at the same time.

Description

technical field [0001] The present invention relates to the communication field, and more specifically relates to a method for updating electronic service guide information. 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. The DVB-H standard is a very influential terrestrial digital TV broadcasting standard among mobile TV standards, and has been vigorously promoted and applied in many countries, especially in Europe and the United States. [0003] In DVB-H, ESG contains the information of currently available services, through which users ca...

AI Technical Summary

Problems solved by technology

[0016] This method needs to increase message interaction. If the ESG stores a lot of information, the amount of messages transmitted will be large, which will affect the normal operation of the system.

[0017] The above methods can all update ESG information, but they are a bit cumbersome, and additional consideration needs to be given to the large amount of memory resources required for ESG information preservation and the time consumption required for ESG information traversal.

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