Some demonstrative embodiments include devices, systems and/or methods of communicating between a cellular manager and a User Equipment (UE) via a Wireless Local Area network (WLAN) access device. For example, an air interface to communicate with a User Equipment (UE) via a cellular link; a controller to route at least part of downlink traffic to the UE via a Wireless Local Area Network (WLAN) access device; and an access device interface to send to the WLAN access device a general packet radio service (GPRS) Tunneling Protocol User Plane (GTP-U) packet including the downlink traffic for the UE, and transport bearer information to identify a transport bearer between the eNB and the UE.