手机使用的是什么IP协议

cmdblock

如果LTE支撑的是全IP协议,那么手机用的是什么IP协议，是PIMP吗？
如果是PIMIP协议,是PGW还是SGW分配proxy IP mobile address给手机?
另外我查了点资料，如下：

Proxy Mobile Internet Protocol have two versions P-MIPv4 and P-MIPv6.

It is integrated in to P-GW to assign the IP address when the user is moving. Lets say if you have assigned an IP address to you and you are moving from one place to another. In this case you would definately change your routers or gateways too so it doesn't mean that new router will assign you the new IP address for routing purpose.

A new router will configure the Proxy IP for you and will assume that you have same IP address that you have assigned. Your IP would be same but in his database it will be merged with other IP address.

Read more at http://tech.queryhome.com/41426/ ... 0u9Ct6HUXOvLE70W.99

"A new router will configure the Proxy IP for you and will assume that you have same IP address that you have assigned. Your IP would be same but in his database it will be merged with other IP address"这句话说手机必须拥有不变的IP地址，完全无法理解这是咋回事？