公开(公告)号：US20150124699A1

公开(公告)日：2015-05-07

申请号：US14255304

申请日：2014-04-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Praveen CHEBOLU ,  Harsh Maheshchand KOTHARI ,  Ganesh Babu KAMMA ,  Ajay Kumar KABADI ,  Shaik ABDULLA

IPC: H04W28/06

CPC classification number: H04W28/06 ,  H04L65/602 ,  H04L65/604 ,  H04L65/608 ,  H04L69/04 ,  H04L69/16 ,  H04L69/22

Abstract: A method and a system for handling audio packets in a Voice over Long Term Evolution (VoLTE) call by a User Equipment (UE) when Robust Header Compression (ROHC) is enabled are provided. The Transmission Control Protocol/Internet Protocol (TCP/IP) layer provides the VoLTE call properties to the ROHC compressor. The TCP/IP layer receives the audio packets from audio engine and sends the Real-time Transport Protocol (RTP) packets to a ROHC compressor. Further, the ROHC compressor compresses the Internet Protocol/User Datagram Protocol (IP/UDP) headers and a RTP header. The ROHC compressor sends the compressed RTP data along with a payload to the network in the UpLink (UL) data path. During DownLink (DL) data path, ROHC decompressor receives compressed ROHC packet from network. The ROHC decompressor ignores the construction of IP/UDP headers for the compressed data.

Abstract translation: 提供了一种在启用鲁棒头文件压缩（ROHC）时由用户设备（UE）进行长时演进（VoLTE）语音呼叫处理音频数据包的方法和系统。 传输控制协议/ Internet协议（TCP / IP）层向ROHC压缩器提供VoLTE调用属性。 TCP / IP层从音频引擎接收音频数据包，并将实时传输协议（RTP）数据包发送到ROHC压缩器。 此外，ROHC压缩器压缩因特网协议/用户数据报协议（IP / UDP）报头和RTP报头。 ROHC压缩器将压缩的RTP数据连同有效负载一起发送到UpLink（UL）数据路径中的网络。 在DownLink（DL）数据路径期间，ROHC解压缩器从网络接收压缩的ROHC数据包。 ROHC解压缩器忽略压缩数据的IP / UDP头的构造。

公开(公告)号：US20160262061A1

公开(公告)日：2016-09-08

申请号：US14954354

申请日：2015-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Srinivas CHINTHALAPUDI ,  Ajay Kumar KABADI ,  Prasad Basavaraj DANDRA

IPC: H04W36/00 ,  H04L29/06

CPC classification number: H04W36/0022 ,  H04L65/1016 ,  H04L65/1059 ,  H04L65/1069

Abstract: Disclosed is a system, User Equipment (UE) and method for preventing voice call (VoLTE) call drops in a communication network. A paging message is received as an Internet Protocol Multimedia Subsystem (IMS) invite message. The paging message includes a domain, or the UE establishes a connection with the network, in order to determine whether the IMS invite is for a voice call. A condition of non-sustenance of the voice call is detected based on a power level check for the UE and Extended Service Request (ESR) is triggered. The voice call is continued according to a success or a failure of the ESR.

Abstract translation: 公开了一种在通信网络中防止语音呼叫（VoLTE）呼叫丢弃的系统，用户设备（UE）和方法。 接收到作为因特网协议多媒体子系统（IMS）邀请消息的寻呼消息。 寻呼消息包括域，或者UE建立与网络的连接，以便确定IMS邀请是否用于语音呼叫。 基于针对UE的功率电平检查来检测语音呼叫不维持的状况，并且触发扩展服务请求（ESR）。 根据ESR的成功或失败继续进行语音通话。