| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a GPRS network system capable of increasing each processing speed of a call and a call acceptance, capable of guaranteeing a minimum band by restriction of the number of processing in one GTP tunnel, and capable of constructing an inexpensive GPRS network by reducing the amount of GTP messages and performing management of users for each group of users. <P>SOLUTION: Users belonging to a specific group out of the subscribers of the GPRS network system are set, a GTP tunnel 200 which only the mobile stations (MS) 70 of subscribers belonging to the group use in common is always constructed, and a list of user information for identifying the subscribers belonging to the group is stored in a home location register (HLR) 20 for retrieving positional information of the mobile stations of the users, and the positional information of the mobile stations of the subscribers belonging to the group is retrieved by the list in the home location register. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
