Invention Grant
US08457318B2 Method and system for continuously transmitting encrypted data of broadcast service to mobile terminal
有权
将广播服务的加密数据连续发送到移动终端的方法和系统
- Patent Title: Method and system for continuously transmitting encrypted data of broadcast service to mobile terminal
- Patent Title (中): 将广播服务的加密数据连续发送到移动终端的方法和系统
-
Application No.: US12310886Application Date: 2007-09-07
-
Publication No.: US08457318B2Publication Date: 2013-06-04
- Inventor: Christian Günther
- Applicant: Christian Günther
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Staas & Halsey LLP
- Priority: DE102006042554 20060911
- International Application: PCT/EP2007/059365 WO 20070907
- International Announcement: WO2008/031762 WO 20080320
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04W36/00
Abstract:
In service access networks having different key hierarchies that provide broadcast service to a mobile terminal, when switching from a first service access network, from which the mobile terminal receives the data of the broadcast service in an encrypted manner by a first data content encryption key, to a second service access network, from which the mobile terminal receives the data of the same broadcast service in an encrypted manner by a second data content encryption key, the mobile terminal receives a key of the hierarchy of the second service access network which is encrypted by a user-specific key of the first service access network.
Public/Granted literature
Information query
