求助：协议里一些词句的中文意思？？

kt_cat

3GPP2 Differentiated Service Class Option（3GPP2有差异服务等级选项？？）；care of address（转交地址？？）；
user profile；
Home RADIUS server；
foreign network（外网？？） ；
broker network；（＝＝？？）proxy network；
pre-shared secret；（＝＝？？）pre-shared key；
Packet Accounting parameters are divided into radio specific parameters collected by the RN,and IP network specific parameters collected by the PDSN. ；
operator billing system；
The method by which this is done is beyond the scope of this specification as is the summary, reconciliation, and billing process used by the carriers. ；