Patent ID: 8094621
Filing Date: 2012-01-10
Classification: H04W

Abstract:
1. A method for performing handover of a mobile station (MS) from a current base station (BSC) connected to a target base station (BST) via a backbone in a Worldwide interoperability for Microwave Access (WiMAX) mobile communication network, comprising: transmitting by the MS, before handover, a Connection Identifier Request (CID-REQ) to the BST via the BSC, and receiving a Connection Identifier Response (CID-RSP) from the BST via the BSC; transmitting by the MS, before handover, a Subscriber Station (SS) Basic Capability Request (SBC-REQ), and receiving a SS Basic Capability Response (SBC-RSP) from the BST via the BSC; transmitting by the MS a Ranging Request (RNG-REQ) to the BST, and receiving a Ranging Response (RNG-RSP) from the BST; transmitting by the MS, during handover, a Registration Request (REG-REQ) to the BST, and receiving a Registration Response from the BST; and establishing a connection between the MS and the BST.