公开(公告)号：US09338699B2

公开(公告)日：2016-05-10

申请号：US14107010

申请日：2013-12-16

Applicant: Weigang Li ,  Indranil Tapadar ,  Guoqiang Xue

Inventor： Weigang Li ,  Indranil Tapadar ,  Guoqiang Xue

IPC: H04W36/00 ,  H04W76/04 ,  H04W76/02

CPC classification number: H04W36/0022 ,  H04W76/19 ,  H04W76/25

Abstract: The present solution enables a packet switched connection to be temporarily released at the wireless terminal for supporting voice calls over a Circuit-Switched (CS) Fallback. The packet switched connection of the LTE core network retained for a pre-defined period of time during the CSFB session allowing the user to quickly switch back to the packet switched connection when the CSFB session is shorter than the predefined period or when the voice call CSFB attempt fails. This is accomplished by the introduction of a timed buffer to control the length of time the LTE core network connection and wireless context information will be retained.

Abstract translation: 本解决方案使得能够在无线终端处暂时释放分组交换连接，以通过电路交换（CS）回退来支持语音呼叫。 在CSFB会话期间，LTE核心网的分组交换连接保持预定的时间段，允许用户在CSFB会话比预定时间段短时或当语音呼叫CSFB时快速切换回分组交换连接 尝试失败。 这是通过引入定时缓冲器来实现的，以控制LTE核心网络连接和无线上下文信息将被保留的时间长度。

公开(公告)号：US20140177592A1

公开(公告)日：2014-06-26

申请号：US14107010

申请日：2013-12-16

Applicant: Weigang LI ,  Indranil TAPADAR ,  Guoqiang XUE

Inventor： Weigang LI ,  Indranil TAPADAR ,  Guoqiang XUE

IPC: H04W36/00 ,  H04W60/04

CPC classification number: H04W36/0022 ,  H04W76/19 ,  H04W76/25

Abstract: The present solution enables a packet switched connection to be temporarily released at the wireless terminal for supporting voice calls over a Circuit-Switched (CS) Fallback. The packet switched connection of the LTE core network retained for a pre-defined period of time during the CSFB session allowing the user to quickly switch back to the packet switched connection when the CSFB session is shorter than the predefined period or when the voice call CSFB attempt fails. This is accomplished by the introduction of a timed buffer to control the length of time the LTE core network connection and wireless context information will be retained.

Abstract translation: 本解决方案使得能够在无线终端处暂时释放分组交换连接，以通过电路交换（CS）回退来支持语音呼叫。 在CSFB会话期间，LTE核心网的分组交换连接保持预定的时间段，允许用户在CSFB会话比预定时间段短时或当语音呼叫CSFB时快速切换回分组交换连接 尝试失败。 这是通过引入定时缓冲器来实现的，以控制LTE核心网络连接和无线上下文信息将被保留的时间长度。