| 摘要 |
<p>A general packet radio service (GPRS) system includes radio network controllers (RNC 15 to 18), support nodes (SGSN:13,14) and a gateway support node (GGSN:12) connected in a hierarchical order for packet transmission between mobile stations (19,20) in the system. Each of each RNC (15 to 18), each SGSN (13,14) and GGSN has a transmitter and receiver for directly transmitting and receiving current location information of mobile stations (19,20) and a communication path controller to return the request for coupling toward subordinate node or controller if the subordinate node or controller includes the destination mobile station (20). Accounting for the packet service is performed by the communication path controller for packets delivered through the return path. <IMAGE></p> |
