Patent ID: 8189532

Claim:
An apparatus, comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to control a handover of the apparatus from a first access node to a second access node, allocate information for a transmission control protocol window size to a transmission control protocol endpoint node, to which the apparatus is connected via a connection, before initiation of a registration of a new location address for said connection, determine the information for the transmission control protocol window size based on at least one of application requirements, ongoing flow information, physical constraints of said apparatus, transmission control protocol parameters, transmission control protocol algorithms, and flow characteristics, send a registration message to rendezvous server/home agent, at least to have a delay δ between the allocating of said information for the transmission control protocol window size and the sending of the registration message, and calculate said delay δ, wherein said delay δ comprises δ≦ RTT C −0.5( RTT A +RTT B ) where RTT A is a round trip time from the apparatus to the rendezvous server/home agent via said second access node, RTT B is a round trip time from the apparatus to the rendezvous server/home agent via a gateway node, and RTT c is a round trip time from the apparatus to the first access node and the transmission control protocol endpoint node.