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

摘要

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.