公开(公告)号：US20150113170A1

公开(公告)日：2015-04-23

申请号：US14579376

申请日：2014-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungho CHOI ,  Erik GUTTMAN ,  Rahul Suhas VAIDYA

IPC: H04L29/12

CPC classification number: H04L61/2015 ,  H04L29/12301 ,  H04L61/2076 ,  H04L61/251 ,  H04W80/04

Abstract: Methods and apparatuses are provided for releasing an internet protocol (IP) address by a packet data network gateway (PGW) in a mobile communication system. The PGW allocates an IP version 4 (IPv4) address and an IP version 6 (IPv6) address to a terminal to establish a packet data network (PDN) connection between the terminal and the PGW. The PGW identifies a PDN type associated with the PDN connection if an event of releasing the IPv4 address has occurred. The PGW transmits, to a serving gateway (SGW), a binding revocation message, including information indicating release of the IPv4 address, with the PDN connection remaining, if the PDN type is IPv4 and IPv6. The PGW receives a binding revocation acknowledge message in response to the binding revocation request message, from the SGW.

Abstract translation: 提供了用于在移动通信系统中通过分组数据网络网关（PGW）释放因特网协议（IP）地址的方法和装置。 PGW向终端分配IP版本4（IPv4）地址和IP版本6（IPv6）地址，以在终端和PGW之间建立分组数据网络（PDN）连接。 如果发生IPv4地址释放的事件，则PGW识别与PDN连接相关联的PDN类型。 如果PDN类型是IPv4和IPv6，则PGW向服务网关（SGW）发送包括指示IPv4地址释放的信息，剩余PDN连接的绑定撤销消息。 PGW从SGW接收响应于绑定撤销请求消息的绑定撤销确认消息。