METHODS AND DEVICES FOR DATA EXCHANGE BETWEEN USER EQUIPMENT AND APPLICATION SERVER

摘要

A user equipment UE (200) and an application server (170) exchange data in a wireless communications network. The UE connects to both a wireless local area network (WLAN) and a wireless wide area network (WWAN). The application server (170) is positioned within the WWAN behind a WWAN firewall (405). The WLAN includes a WLAN network address translation NAT component (430) and firewall (435) such that the UE and the application server do not have a persistent data connection over the WLAN. The application server can open a WWAN firewall to permit uploads from the UE over the WLAN. The UE can open the WLAN firewall and/or NAT to permit downloads from the application server over the WLAN. In another embodiment, the application server or UE can upload files to a server (410) outside the WLAN and WWAN firewalls and send a link to the uploaded files for retrieval.