Patent ID: 9681481
Date: 2017-06-13
CPC Classifications: H04W

Claim:
1. A method for mobility management of a mobile device comprising: the mobile device receiving over a first cell site control channel a first prefix sent by a first cell site equipment serving a first coverage area, the first prefix being sent independently of a first internet protocol (IP) address; and the mobile device determining the first IP address based on the first prefix and an identifier associated with the mobile device; establishing a first multipath-transfer control protocol (MP-TCP) subflow to a corresponding node from the mobile device in the first coverage area using the first IP address; as the mobile device moves to a second coverage area served by a second cell site equipment, the mobile device receiving in an overlapped coverage area including a first portion of the first coverage area and a second portion of the second coverage area, a second prefix sent by the second cell site equipment over a second cell site control channel; the mobile device determining a second IP address based on the second prefix and the identifier associated with the mobile device; establishing a second MP-TCP subflow using the second IP address while the mobile device is in the overlapped coverage area; and the mobile device making a determination to close the first MP-TCP subflow based on a signal strength of a transmission from the first cell site equipment being below a threshold.