Patent ID: 8098627
Filing Date: 2012-01-17
Classification: H04L,H04W

Abstract:
1. A method for handoff in IMS/MMD architecture of a mobile node in a first network, said mobile node associated with a first protocol component in said first network, said first protocol component associated with a second protocol component in said first network, said mobile node moving from said first network to a second network, said method comprising: preparing to move said mobile node to said second network by transferring context information from said first protocol component to a third protocol component in said second network while said mobile node is in said first network; and establishing a security association between said mobile node and said third protocol component using said context information while said mobile node is in said first network, thereby reducing handoff delay and packet loss for said mobile node, wherein said third protocol component has an address and said preparing step includes sending said address of said third protocol component to said first and second protocol components.