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Method for switching mobile terminal service in digital TV broadcast multiple frequency network

A technology for digital TV broadcasting and mobile terminals, applied to parts of color TVs, parts of TV systems, TVs, etc., can solve problems such as the lack of implementation methods for mobile terminal service switching, achieve smooth service switching, and avoid ping-pong switching effect

Active Publication Date: 2009-05-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the current digital TV broadcasting standard is gradually maturing, there is no specific implementation method for this kind of mobile terminal service switching

Method used

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  • Method for switching mobile terminal service in digital TV broadcast multiple frequency network
  • Method for switching mobile terminal service in digital TV broadcast multiple frequency network
  • Method for switching mobile terminal service in digital TV broadcast multiple frequency network

Examples

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Embodiment Construction

[0060] The present invention proposes a scheme for mobile terminals to switch services in a digital television broadcasting multi-frequency network. The network side sends the switching information to the mobile terminal through an adjacent frequency band message (NFM); , automatically update program information, re-select service frequency band, status switching and program switching.

[0061] In order to make the purpose, technical solution and advantages of the present invention clearer, the specific content included in the handover information will be described first below, then the specific work flow of the mobile terminal used to implement the method of the present invention will be described, and finally how the mobile terminal is in different switch between states.

[0062] In the digital television broadcasting multi-frequency network, the network side sends an NFM message, which includes information about switching. NFM messages are transmitted through Service Indic...

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Abstract

The invention discloses a mobile terminal switching method in the digital telecast multi-frequency network. NFM sent by the network side includes the information of switch, Mobile Terminal receives carrier information of the other frequency band during the intervening period of receiving pulse signals of serve frequency band, and decides whether and how to proceed switching according to the received switch information and carrier information of service and adjacent frequency bands, avoiding ping-pong switching through setting delay. The invention produces specific programs respectively for the two steady states of mobile terminal: idle and business state.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for a mobile terminal to perform service switching in a digital television broadcasting multi-frequency network. Background technique [0002] Due to the adoption of modulation methods and super error correction functions suitable for mobile phones and mobile reception, the digital TV broadcasting service makes it possible for mobile phones or other mobile terminals to receive high-definition digital TV programs. [0003] In the digital TV broadcasting network, in order to avoid mutual interference of the signals sent by each transmitting station (TTX), a technical solution is to use the multi-frequency network technology, that is, adjacent transmitting stations use different carrier frequencies to transmit the same TV program. In the digital TV broadcasting service mode of this multi-frequency network, each transmitting station can only cover a limited ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04N5/44H04M11/08H04N5/00H04W36/30
Inventor 徐莹吕林军张毅
Owner HUAWEI TECH CO LTD