Abstract: A communication controller and a communication controlling method are provided, even when functionalities of the communication controller included in a communication system such as UTRAN or the like, so that the services of the functionalities are available broadly in the whole system. An RNC 102 for controlling a movable communication terminal device, in cooperation with the communication controller, receives a request for provision of a service.

Abstract: A call admission control method according to the present invention includes the steps of: receiving, at a first radio controller apparatus (01), a call setting instruction for a first mobile station (01) located in a first cell (01), from a core network; and setting an access link between the first radio controller apparatus (01) and a first radio base station (01) serving the first cell (01), and setting a first radio link between the first radio base station (01) and the first mobile station (01) in the first cell (01), when a group ID of the first mobile station (01) included in the call setting instruction is determined to be managed by the first radio controller apparatus (01) as a group ID of a mobile station allowed to perform communications in the first cell (01).

Abstract: When receiving an extension connection request from a first mobile terminal, a first route selection device selects a first extension connection route from among a plurality of extension connection routes and transmits the type of the first extension connection route and calling-side address information used on the first extension connection route to a second route selection device. The second route selection device selects a second extension connection route from among the plurality of extension connection routes and transmits the type of the second extension connection route and called-side address information used on the second extension connection route to the first route selection device. If the second extension connection route coincides with the first extension connection route, an extension connection is established between the first mobile terminal and the second mobile terminal via the first extension connection route.

Abstract: Subjects are to provide a stand-alone artificial intervertebral disk which has flexible, nearly ideal, mechanical deformation properties and durability and is capable of being bonded and fixed to vertebral bodies at a high force and to provide an artificial-intervertebral-disk insertion jig with which the artificial intervertebral disk can be easily inserted and disposed between vertebrae without fail. The artificial intervertebral disk has a constitution comprising: a core material comprising a structure which is either a multiaxis three-dimensional woven structure or knit structure made of organic fibers arranged along three or more axes or a structure comprising a combination of the woven structure and the knit structure; and plates superposed respectively on the upper and lower sides of the core material, the plates being made of a biodegradable and bioabsorbable polymer containing bioactive bioceramic particles.