Ntt Docomo, Inc.

Daisuke Fujishima

Keisuke Suzuki

Itsuma Tanaka

Irfan Ali

Malla Reddy Sama

Srisakul Thakolsri

Ashiq Khan

Zhen Miao

A radio communication system includes user equipment, a call control apparatus, and a plurality of communication apparatuses, wherein each communication apparatus belongs to one of a plurality of groups, wherein the user equipment transmits, to the call control apparatus, a first access request signal including a group specifying information for specifying one group and a communication destination identifier, wherein the call control apparatus transmits, to the communication apparatus belonging to the one group specified by the group specifying information, a second access request signal including the communication destination identifier, and wherein the communication apparatus establishes a communication path between a communication destination indicated by the communication destination identifier included in the second access request signal and the user equipment.

Radio communication system and communication method

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 () acquires subscriber information on UE () from an HSS () based on an attachment request from the UE () forwarded by an eNB (), the subscriber information including availability for the UE () to use the dedicated network, and sends the eNB () a selection instruction to select the dedicated network based on the acquired subscriber information. When the eNB () receives the selection instruction from the MME (), the eNB () determines a dedicated MME (D) constituting the dedicated network, and transmits the attachment request from the UE () to the determined dedicated MME (D).

Mobile communication system, network node, and mobile communication method

Growing community of inventors

Tokyo, Japan

Daisuke Fujishima