A method and terminal for receiving emergent broadcast under dormancy status

A dormant state, emergency broadcast technology, applied in the field of mobile communications, can solve the problems of property loss, life danger, failure to receive emergency broadcasts, etc., and achieve the effects of energy saving, reliable reception, and short running time

Inactive Publication Date: 2008-04-30
INNOFIDEI TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, emergency broadcasts cannot be received during this period
However, if the user cannot receive the emergency broadcast in time, the multimedia broadcast service may not be received normally, and in severe cases, it may cause life danger or property loss.

Method used

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  • A method and terminal for receiving emergent broadcast under dormancy status
  • A method and terminal for receiving emergent broadcast under dormancy status

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Embodiment Construction

[0046] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0047]The core idea of ​​the present invention is: in order to ensure the reception of emergency broadcasts, it is necessary to enable the terminal to be synchronized with the received signal in the dormant state; The start time of the index time slot is determined by the received signal information set in the terminal and changed synchronously with the received signal. When the terminal enters the dormant state, it receives an index time slot according to the received signal information at regular intervals, and inquires whether there is an emergency broadcast; if there is no emergency broadcast, it continues to enter the dormant state after receiving the index time slot; otherwise Receive emergency broadcasts. According to the received signal information, the terminal can also determine the start time of the index time slot when it ...

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Abstract

The invention discloses a method for receiving emergency announcement under sleeping state and a terminal thereof. The method comprises a terminal under sleeping state determines the starting time of an searching interval at regular intervals according to the receiving signal synchronizing with a receiving signal set in the terminal, and receives the searching interval when it is indicated that the searching interval has an emergency announcement. The terminal comprises a decoding module for receiving signal from a broadcasting network; a control module for closing the decoding module when there is no broadcasting command from an application layer, determining the starting time of the searching interval once the decoding module is turned off for a certain time TW according to the information of the receiving signal synchronizing with the receiving signal set in the terminal and awaking the decoding module to receive the searching interval, and judging whether there is an emergency announcement in the searching interval, and if yes, instructing the decoding module to receive. By the invention, the mobile terminal can receive emergency announcement even under sleeping state. And, the invention has electricity-saving effect.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and terminal for receiving emergency broadcasts in a dormant state. Background technique [0002] In the existing mobile multimedia broadcasting system, a frame contains several TS (Time Slot, time slot), each time slot includes a beacon and several OFDM (orthogonal frequency division multiplexing) symbols, data and Control information is carried on these time slots. [0003] The physical layer of the broadcast channel provides a broadcast channel for upper-layer services through the physical layer logical channel PLCH; the physical layer logical channel is divided into the control logical channel CLCH and the service logical channel SLCH; the control logical channel is used to carry broadcast system control information, and the service logical channel is used for Carrying broadcast services; the sending and receiving parties agree in advance on the time slots occupi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/32H04Q7/38H04W52/02H04W76/02H04W88/02
CPCY02D30/70
Inventor 吕悦川王西强张辉
Owner INNOFIDEI TECHNOLOGIES INC
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