公开(公告)号：US20140274006A1

公开(公告)日：2014-09-18

申请号：US13831778

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Subbarayudu MUTYA ,  Jayavarapu Venkata Krishna MURTHY ,  Shivank NAYAK

IPC: H04W4/16

CPC classification number: H04W4/16 ,  H04L12/1827 ,  H04L51/38 ,  H04M2242/04 ,  H04W8/183 ,  H04W36/14 ,  H04W88/06

Abstract: Systems and methods use the capabilities of multiple SIMs to prevent calls from being dropped on a multi-SIM wireless device. In the various embodiments, network conditions may be monitored for signal quality during an active call. When signal quality on the network deteriorates, the multi-SIM wireless device may switch the active call to a network associated with a different SIM that provides better service. To enable the switch, the multi-SIM wireless device may setup a conference call with the called party and the different SIM. In the various embodiments, the multi-SIM wireless devices may be a dual-SIM dual active (DSDA) wireless device.

Abstract translation: 系统和方法使用多个SIM卡的功能来防止多SIM卡无线设备上的呼叫被丢弃。 在各种实施例中，可以在活动呼叫期间监视网络状况的信号质量。 当网络上的信号质量恶化时，多SIM无线设备可以将活动呼叫切换到与提供更好服务的不同SIM相关联的网络。 为了启用交换机，多SIM无线设备可以与被叫方和不同的SIM卡建立电话会议。 在各种实施例中，多SIM无线设备可以是双SIM双主动（DSDA）无线设备。