公开(公告)号：US09143914B2

公开(公告)日：2015-09-22

申请号：US13842371

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Nagaraja Kumar Maganti ,  Bera Asimava

IPC: H04M11/04 ,  H04W4/00 ,  H04W36/00 ,  H04W4/22 ,  H04W76/00 ,  H04W60/00

CPC classification number: H04W4/90 ,  H04W36/0022 ,  H04W60/00 ,  H04W76/50

Abstract: Systems and methods for handling requests for emergency calls are disclosed. In particular, the emergency calls may be expedited when a tracking area update is in progress. An extended service request is transmitted by a user equipment while performing a tracking area update, the request relating to an emergency call. A circuit-switched fallback procedure may be performed before completion of the TAU.

Abstract translation: 公开了处理紧急呼叫请求的系统和方法。 特别地，当跟踪区域更新正在进行时，可以加快紧急呼叫。 在执行跟踪区域更新时，由用户设备发送扩展服务请求，涉及紧急呼叫的请求。 可以在TAU完成之前执行电路交换回退过程。