Base station device, terminal device, location management device, and control method
AssigneeSharp Kabushiki Kaisha
InventorsYoko Kuge, Masafumi Aramoto
Life of this patent
Estimating the term…
Abstract
In a communication system constituting a first core network and a second core network, a location management device deployed in a first core network initiates a switching procedure between the core networks. In the switching procedure, the second core network is selected by MME selection of a base station device, allowing a terminal device to connect to the second core network. This configuration provides a communication control method and the like for enabling a terminal device to switch between core networks in a communication system in which multiple core networks are overlaid.
Claims16
A User Equipment (UE) comprising:
- transmission and reception circuitry configured to transmit, to a base station device in an access network, first identification information identifying a dedicated core network in an attach procedure;
- and
- a controller configured to establish a communication path with the dedicated core network in the attach procedure, wherein
- the transmission and reception circuitry is further configured to communicate by using the established communication path, and
- the transmission and reception circuitry is further configured to transmit, to the base station device, second identification information identifying the dedicated core network in a tracking area update procedure.
A base station device in an access network, the base station device comprising:
- transmission and reception circuitry configured to receive, from a User Equipment (UE), second identification information identifying a dedicated core network in a tracking area update procedure;
- and
- a controller configured to select a core network device in the dedicated core network based on the second identification information, wherein
- the transmission and reception circuitry is further configured to transmit the second identification information to the selected core network device in the tracking area update procedure.
A communication control method performed by a User Equipment (UE), the communication control method comprising:
- transmitting, to a base station device in an access network, first identification information identifying a dedicated core network in an attach procedure;
- establishing a communication path with the dedicated core network in the attach procedure;
- being capable of communicating by using the established communication path;
- and
- transmitting, to the base station device, second identification information identifying the dedicated core network in a tracking area update procedure.
A communication control method performed by a base station device in an access network, the communication control method comprising:
- receiving, from a User Equipment (UE), second identification information identifying a dedicated core network in a tracking area update procedure;
- selecting a core network device in the dedicated core network based on the second identification information;
- and
- transmitting the second identification information to the selected core network device in the tracking area update procedure.
Dependencies are inferred from the claim text.