US Patent 10172058 Data gateway alignment in a wireless communication network

A wireless communication network aligns gateways for wireless user devices. A mobility controller detects attachment of a wireless user device in a source Tracking Area (TA). The mobility manager transfers a message to a policy engine indicating the source TA. The wireless user device exchanges user data over a source access gateway and a source network gateway in the source TA. The mobility controller detects a handover of the wireless user device from the source access gateway to a target access gateway in a target TA. The mobility manager transfers a message to the policy engine indicating the target TA for the wireless user device. The policy engine transfers a reattach message to the source network gateway for delivery to the wireless user device. The wireless user device reattaches in the target TA and exchanges additional user data over the target access gateway and the target network gateway.