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1. (WO2010118571) METHOD, APPARATUS AND SYSTEM FOR RECEIVING PUBLIC WARNING SYSTEM (PWS) MESSAGES

Pub. No.:    WO/2010/118571    International Application No.:    PCT/CN2009/071272
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Thu Apr 16 01:59:59 CEST 2009
IPC: H04W 4/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
XING, Pingping
邢平平
XIE, Boyun
谢铂云
LIU, Yalin
刘亚林
Inventors: XING, Pingping
邢平平
XIE, Boyun
谢铂云
LIU, Yalin
刘亚林
Title: METHOD, APPARATUS AND SYSTEM FOR RECEIVING PUBLIC WARNING SYSTEM (PWS) MESSAGES
Abstract:
The invention discloses a method, an apparatus and a system for receiving public warning system (PWS) messages in mobile communication technology field. The method comprises: in the service limited situation, sending a request to the network for obtaining the information used for authenticating PWS messages; receiving a response message of the request returned from the network, and the response message of the request carries the information for authenticating PWS messages; authenticating the received PWS messages according to the information for authenticating PWS messages. According to the invention, users that stay at a macra-cell, that are not closed subscriber group (CSG) users, that are roaming in other countries, or that are in the service limited situation and the public key of PWS messages is updated by the PWS warning center, are able to receive PWS messages correctly.