Delayed ACK in dual-mode call handover
AssigneeAruba Networks, Inc.
InventorRajneesh Bajpai
Life of this patent
Estimating the term…
Abstract
Handover of a call to a dual-mode phone from cellular to Wi-Fi. When handing over a call mediated by a mobility controller to a dual-mode phone and switching the call from a cellular to a Wi-Fi call, the mobility controller initates a Wi-Fi connection to the dual mode phone. When the Wi-Fi connection is established, and with the cellular connection through the mobility controller still in place, the mobility controller starts a timer with a predetermined value and the dual-mode phone initiates release of the cellular connection. When the timer expires, the mobility controller switches the call from the cellular connection to the Wi-Fi connection.
Claims5
A method of transferring a call from the cellular side to the Wi-Fi side of a dual-mode phone, the call mediated by a controller, comprising:
- receiving, in the controller, an indication that the dual-mode phone is within Wi-Fi range,
- the controller making a Wi-Fi connection to the dual-mode phone, the dual-mode phone having a cellular connection mediated by the controller,
- the controller starting a timer for a predetermined time when the Wi-Fi connection to the dual-mode phone is made, and
- connecting the call to the Wi-Fi connection when the timer expires.
Dependencies are inferred from the claim text.