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    • 58. 发明申请
    • Seamless Call Switching In A Dual Mode Environment
    • 无线呼叫切换在双模式环境中
    • US20090191864A1
    • 2009-07-30
    • US12419129
    • 2009-04-06
    • Gary P. MousseauChristopher R. Wormald
    • Gary P. MousseauChristopher R. Wormald
    • H04W4/00H04M1/00
    • H04W36/0066H04W36/18
    • Methods and apparatus for providing a seamless switching of voice calls between different wireless networks are disclosed. In one illustrative example, a mobile communication device has a processor and one or more wireless transceivers coupled to the processor. The one or more wireless transceivers include a first transceiver portion operative in accordance with a first wireless network (e.g. a GSM/GPRS cellular network) and a second transceiver portion operative in accordance with a second wireless network (e.g. an 802.11 wireless network). A voice call is maintained between the mobile device and a communication terminal through call control equipment. The processor of the mobile device is operative to maintain voice communications for the voice call over a traffic channel established between the mobile device and the first wireless network using the first transceiver portion; cause a connecting call to be established with the communication terminal through the call control equipment in response to a predetermined condition, where the connecting call involves a traffic channel established between the second wireless network and the mobile device using the second transceiver portion; and after the connecting call is established, maintain voice communications for the voice call over the traffic channel established between the second wireless network and the mobile device.
    • 公开了用于在不同无线网络之间提供语音呼叫的无缝切换的方法和装置。 在一个说明性示例中,移动通信设备具有耦合到处理器的处理器和一个或多个无线收发器。 一个或多个无线收发器包括根据第一无线网络(例如,GSM / GPRS蜂窝网络)操作的第一收发器部分和根据第二无线网络(例如,802.11无线网络)操作的第二收发器部分。 通过呼叫控制设备在移动设备和通信终端之间维持语音呼叫。 移动设备的处理器可操作以通过使用第一收发器部分在移动设备与第一无线网络之间建立的业务信道上维护用于语音呼叫的语音通信; 响应于预定条件,通过呼叫控制设备与通信终端建立连接呼叫,其中连接呼叫涉及使用第二收发器部分在第二无线网络和移动设备之间建立的业务信道; 并且在连接呼叫建立之后,通过在第二无线网络和移动设备之间建立的业务信道来维护语音呼叫的语音通信。
    • 59. 发明申请
    • PRESENCE-BASED CALL SWITCHING
    • 基于存在的呼叫切换
    • US20090163201A1
    • 2009-06-25
    • US11962785
    • 2007-12-21
    • Christopher R. Wormald
    • Christopher R. Wormald
    • H04Q7/20
    • H04L65/1069H04L29/1216H04L61/157H04L65/1006
    • To facilitate establishment of connections between dual-mode mobile wireless devices within a local wireless data network, at a network gateway for the local wireless data network, receiving from a first dual-mode mobile wireless device following entry of the first dual-mode mobile wireless device to the local wireless data network a registration request, a first dual-mode mobile wireless device telephone directory number (DN), and a first dual-mode mobile wireless device session initiation protocol (SIP) uniform resource identifier (URI). A first device dynamic data network address is assigned to the first dual-mode mobile wireless device. The first device DN and the first device SIP URI are forwarded to a database for storage so that the first device SIP URI is associated with the first device DN in the database. The first dual-mode mobile wireless device is returned a network SIP URI for the wireless data network.
    • 为了便于在本地无线数据网络内的双模式移动无线设备之间建立连接,在本地无线数据网络的网络网关处,从第一双模移动无线设备接收第一双模移动无线 设备到本地无线数据网络的注册请求,第一双模移动无线设备电话号码(DN)和第一双模移动无线设备会话发起协议(SIP)统一资源标识符(URI)。 第一设备动态数据网络地址被分配给第一双模移动无线设备。 将第一设备DN和第一设备SIP URI转发到数据库以进行存储,使得第一设备SIP URI与数据库中的第一设备DN相关联。 第一个双模移动无线设备返回无线数据网络的网络SIP URI。