Patent ID: 8325672
Filing Date: 2012-12-04
Classification: H04W

Abstract:
1. A communication method performed by a WWAN network system for a mobile terminal (MT) with a WWAN address in the WWAN to bilaterally switch communication between the WWAN and a WLAN via a mobility supporting module (MSM) suitable to use with a mobility control module (MCM), the method comprising: receiving a registration report sent by the mobile terminal when the mobile terminal enters the WLAN, wherein the registration report at least contains a WLAN address that the mobile terminal acquires when entering the WLAN; and establishing a mapping relationship between the WWAN address and the WLAN address of the mobile terminal; wherein the mobility supporting module enables a switch between the WWAN and WLAN, dynamically updates the mapping relationship between the WWAN and WLAN based on when the mobile terminal enters or exits the WLAN, and enables the exchange of registration and/or cancellation reports between the WWAN and WLAN, either on a periodic or continuous basis, by providing updated WWAN and WLAN address information via one or more encapsulating techniques; wherein the mobile terminal has (i) an invariable address in WWAN and (ii) a different WLAN address with each entry into a different WLAN; and wherein the MCM is incorporated within the MT and the MSM is placed within the WWAN such that two types of information is exchanged between the MCM and MSM, that is, control messages including the registration and/or cancellation reports and data traffic for carrying data packets sent by the MT to an external source via the MSM.