| 摘要 |
<p>Disclosed are a service switching method and device for a multimode terminal. The method comprises: a packet data protocol (PDP) management layer detecting signal quality of different networks in a current network environment when packet switched (PS) service data requested by a user is transmitted between the multimode terminal and a network side through an activated first PDP link, the PDP management layer being located between a frame layer of the multimode terminal and a wireless access layer; the PDP management layer comparing the detected signal quality of different networks, and requesting activating a second PDP link corresponding to a network with optimal signal quality; and after the second PDP link is successfully activated, the PDP management layer switching a transmission link between the PDP management layer and the network side to the second PDP link. By means of the present invention, the multimode terminal can be seamlessly switched to a network currently having optimal signal quality in a network convergence environment, thereby increasing the transmission rate of the PS service data.</p> |
