| 摘要 |
<p>Disclosed are a user equipment, a request message receiving method and apparatus, and a system thereof. The method comprises: receiving a request message sent by a user equipment and carrying a service type and/or a circuit switch fallback response, the request message comprising one of the following: a tracking region update request message, a route region update request message and a service extension request message. By means of the present invention, the problem that a signaling overhead of reselecting 2G/3G network access is high in a case in which a UE is restricted, thereby reducing the signaling overhead and improving the efficiency of accessing a 2G/3G network.</p> |
