Emergency alert using MBMS and cell broadcasting

An emergency and emergency notification technology, which is applied in broadcast service distribution, emergency connection processing, emergency/dangerous communication services, etc., can solve the problem that the sensitivity of interference affects the reliability of the underlying information transmission

Inactive Publication Date: 2015-07-22
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the data rate and susceptibility to interference of such unicast transmissions can affect the amount of information that can be transmitted and the reliability of the underlying transmission

Method used

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  • Emergency alert using MBMS and cell broadcasting
  • Emergency alert using MBMS and cell broadcasting
  • Emergency alert using MBMS and cell broadcasting

Examples

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Embodiment Construction

[0037] The detailed description, set forth below in connection with the accompanying drawings, is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. It will be apparent, however, to one skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts.

[0038] The techniques described herein can be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and others. The words "system" and "network" are often used interchangeably. A CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and so on. UTRA in...

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Abstract

An emergency notification service is described that is delivered using an evolved multimedia broadcast-multicast service (eMBMS). An emergency notification is sent out to user equipment (UE) in affected areas. In response to receiving the emergency notification, the UE searches the appropriate emergency multicast service acquisition information for multiple potential types of available emergency content that is provided by the eMBMS system in the network and tunes to the eMBMS to receive the emergency content. In selected aspects, the transmitted information, including the notifications and content may be scrambled using the same cell ID for each of the cells transmitting the same content. This improves the quality of the transmitted signals allowing for more reliable receipt and decoding by the receiving UEs.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 61 / 725,911, filed November 13, 2012, entitled "EMERGENCY ALERT USING MBMS AND CELL BROADCASTING," which is expressly incorporated herein by reference in its entirety. technical field [0003] In general, aspects of the present disclosure relate to wireless communication systems, and more specifically, to emergency alerts using Multimedia Broadcast Multicast Service (MBMS) and cell broadcast. Background technique [0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, and broadcasting. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/22H04W76/00H04W72/00H04L29/06H04W4/90
CPCH04W76/002H04W4/22H04M3/5116H04L65/4069H04M3/00H04W76/007H04W4/06H04W4/90H04L65/61H04W76/50H04W76/40H04W72/30
Inventor C·M·迪亚斯帕索斯张晓霞C·古普塔王俊N·奈克R·A·戈尔米
Owner QUALCOMM INC
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