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US 8,554,238 B2Granted
Idle-to-active state shift apparatus in carrier aggregation environment
AssigneeElectronics and Telecommunications Research Institute
InventorsYou Sun Hwang, Kyung-Yul Cheon, Aesoon Park
Life of this patent
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Abstract
Provided is a technology that enables a terminal to quickly perform an idle-to-active state shift and to quickly perform a handover using a carrier aggregation characteristic. The terminal may attempt a Radio Resource Control (RRC) connection establishment using a plurality of carrier components. When the RRC connection establishment using one of the carrier components succeeds, the terminal may transmit an RRC reconfiguration complete message to a base station.
Claims20
A terminal, comprising:
- a Radio Resource Control (RRC) connection establishment performing unit to perform an RRC connection establishment with respect to a base station using a first carrier component;
- a receiver to receive, from the base station, information associated with at least one second carrier component assigned to the terminal using the first carrier component;
- a bearer establishment unit to establish a bearer with respect to the first carrier component;
- and
- a state shifter to shift a state of the terminal to an active state according to a establishment complete of the bearer with respect to the first carrier component,
- wherein the terminal attempts the RRC connection establishment using a plurality of carrier components, and when the RRC connection is established using one of the carrier components, the terminal transmits an RRC reconfiguration complete message to the base station or shifts the state of the terminal to the active state,
- wherein the terminal transmits the RRC reconfiguration complete message to the base station or shifts the state of the terminal to the active state when the bearer with respect to the first carrier component is established and a bearer with respect to the second carrier component is not established.
4 more elements
A base station, comprising:
- an RRC connection establishment performing unit to perform an RRC connection establishment with respect to a terminal using a first carrier component;
- a radio resource assignment unit to assign at last one second carrier component to the terminal;
- a transmitter to transmit information associated with the at least one second carrier component to the terminal;
- and
- a receiver to receive first data from the terminal using the first carrier component,
- wherein the terminal attempts the RRC connection establishment using a plurality of carrier components, and when the RRC connection is established using one of the carrier components, the terminal transmits an RRC reconfiguration complete message to the base station or shifts a state of the terminal to an active state,
- wherein the terminal transmits the RRC reconfiguration complete message to the base station or shifts the state of the terminal to the active state when a bearer with respect to the first carrier component is established and a bearer with respect to the second carrier component is not established.
4 more elements
A terminal, comprising:
- an RRC connection establishment performing unit to perform an RRC connection establishment with respect to a base station using a first carrier component;
- a receiver to receive, from the base station, an RRC reconfiguration request message containing information associated with at least one second carrier component assigned to the terminal using the first carrier component;
- a bearer establishment unit to establish a bearer with respect to the first carrier component;
- and
- a transmitter to transmit an RRC reconfiguration complete message to the base station according to an establishment complete of the bearer with respect to the first carrier component,
- wherein the terminal attempts the RRC connection establishment using a plurality of carrier components, and when the RRC connection is established using one of the carrier components, the terminal transmits the RRC reconfiguration complete message to the base station or shifts a state of the terminal to an active state,
- wherein the terminal transmits the RRC reconfiguration complete message to the base station or shifts the state of the terminal to the active state when the bearer with respect to the first carrier component is established and a bearer with respect to the second carrier component is not established.
4 more elements
Dependencies are inferred from the claim text.