MOBILE COMMUNICATION SYSTEM, NETWORK NODE, AND MOBILE COMMUNICATION METHOD

摘要

The invention provides a mobile communication system, a network node, and a mobile communication method, which can cause user equipment of a particular type to attach to a dedicated network regardless of whether or not the user equipment supports a low access priority indicator (LAPI). An MME (60) acquires subscriber information on UE (10) from an HSS (70) based on an attachment request from the UE (10) forwarded by an eNB (50) the subscriber information including availability for the UE (10) to use the dedicated network, and sends the eNB (50) a selection instruction to select the dedicated network based on the acquired subscriber information. When the eNB (50) receives the selection instruction from the MME (60), the eNB (50) determines a dedicated MME (60D) constituting the dedicated network, and transmits the attachment request from the UE (10) to the determined dedicated MME (60D).

主权项

1. A mobile communication system comprising:
a first network node; a second network node; and a dedicated network node constituting a dedicated network, wherein the first network includes
a subscriber information acquisition unit configured to acquire subscriber information on user equipment from a subscriber server based on an attachment request from the user equipment forwarded by the second network node, the subscriber information including availability for the user equipment to use the dedicated network, anda selection instruction transmission unit configured to send the second network node a selection instruction to select the dedicated network based on the subscriber information acquired by the subscriber information acquisition unit, and the second network includes
a selection instruction reception unit configured to receive the selection instruction from the first network node, anda network selection control unit configured to determine the dedicated network node constituting the dedicated network based on the selection instruction received by the selection instruction reception unit, and to transmit the attachment request from the user equipment to the determined dedicated network node.