Mobile divices having improved operation during network unavailability

摘要

The present invention relates to improved techniques for reducing delays faced by users of mobile devices (100) due to unavailability of wireless networks. In one technique, the mobile device can connect to a remote server through a network and has an application (102) that executes on the device. An asynchronous message manager (110) manages the sending of outgoing messages produced from the application that are to be sent to the remote server through the network and have been stored in an asynchronous message queue. Thus processing at the device can continue while the asynchronous request is processed in the background. In another technique, a content channel including resources can be loaded into a reserved portion of a cache memory of the device from the remote server through the wireless network provided it will fit. Thus, these resources are guaranteed to be locally available, regardless of availability of the wireless network. In another technique, lists displayed at the mobile device are manipulated by local processing on the device with changes being thereafter notified over the wireless network These various techniques can be used separately or in combination.