Patent ID: 8885504

Claim:
A method for bandwidth aggregation of a Mobile Internet Access Node (MiAN) which is an apparatus having both wide area network (WAN) accessing ability and wireless local area network (WLAN) accessing ability, applied in an aggregation system, wherein the aggregation system comprises: a master MiAN and one or more slave MiANs, the master MiAN and the one or more slave MiANs are connected with a WAN via WAN links respectively corresponding to the master MiAN and the one or more slave MiANs, the master MiAN establishes a communication link with the one or more slave MiANs via a proximity interface, the method comprising steps of: step A, the master MiAN receiving a service flow sent from a wireless Internet device (WiD) to the WAN; step A 1 , the master MiAN determining whether a route table item is established locally for the service flow and if yes, sending the service flow according to the route table item; otherwise, proceeding to step B; step B, the master MiAN determining whether the service flow is to be sent through a slave MiAN according to a preset strategy; the master MiAN selecting a first slave MiAN to send the service flow if the result of the determination is yes; and the master MiAN sending the service flow to the WAN via the WAN link corresponding to the master MiAN if the result of the determination is no; and step C, the master MiAN sending the service flow to the first slave MiAN so that the first slave MiAN sends the service flow sent from the master MiAN to the WAN via the WAN link corresponding to the first slave MiAN; wherein the master MiAN determining whether the service flow is to be sent through the slave MiAN according to the preset strategy in step B comprises: the master MiAN obtaining a current link state parameter of the WAN link corresponding to the master MiAN, wherein the link state parameter comprises at least one of queue length, packet sending delay, throughput, Signal to Noise Ratio (SNR) and path loss; and determining whether the current link state parameter exceeds a preset threshold and if yes, determining the service flow is to be sent through the slave MiAN; otherwise, determining the service flow is not to be sent through the slave MiAN.