Invention Grant
US09554318B2 Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
有权
在使用不同传输方式的网络之间提供无缝呼叫切换的方法和装置
- Patent Title: Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
- Patent Title (中): 在使用不同传输方式的网络之间提供无缝呼叫切换的方法和装置
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Application No.: US14263608Application Date: 2014-04-28
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Publication No.: US09554318B2Publication Date: 2017-01-24
- Inventor: Mark J Enzmann
- Applicant: AT&T Mobility II LLC
- Applicant Address: US GA Atlanta
- Assignee: AT&T Mobility II LLC
- Current Assignee: AT&T Mobility II LLC
- Current Assignee Address: US GA Atlanta
- Agency: Hartman & Citrin LLC
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W36/24 ; H04W36/14 ; H04W36/00 ; H04W36/30
Abstract:
Call handoff from an 802.1x network to a cellular network, and vice versa. A wireless device that has both cellular and 802.1x capability detects the strength of a cellular signal and of an 802.1x signal. If a call is taking place over the 802.1x network and the strength of the 802.1x signal drops below a particular level and the strength of the cellular signal is above a certain level, the call is handed off from the 802.1x network to the cellular network. If a call is taking place over the cellular network and the cellular signal strength drops below a certain level while the 802.1x signal strength is above a certain level, the call is handed off from the cellular network to the 802.1x network. In addition, the user of the wireless device can manually initiate the handoff by actuating a handoff selector of the wireless device.
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