Communication control method and user equipment
AssigneeKYOCERA Corporation
InventorsMasato Fujishiro, Henry Chang
Life of this patent
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Abstract
A communication control method according to one embodiment is a method in a mobile communication system. The communication control method includes receiving, by a user equipment in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC release message including a condition for releasing or suspending an RRC connection, performing, by the user equipment, data communication with the base station until the condition is met even in a case of receiving the RRC release message, and transitioning the user equipment to an RRC idle mode or an RRC inactive mode when the condition is met.
Claims12
A communication control method in a mobile communication system, the communication control method comprising:
- receiving, by a user equipment in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC release message including a first condition for releasing an RRC connection or a second condition for suspending the RRC connection;
- deferring transitioning the user equipment to an RRC inactive mode or an RRC idle mode until the first condition or the second condition satisfied even after receiving the RRC release message;
- performing, by the user equipment, data communication with the base station until the first condition or the second condition is satisfied even after receiving the RRC release message;
- transitioning the user equipment to an RRC idle mode in response to the first condition being satisfied;
- and
- transitioning the user equipment to an RRC inactive mode in response to the second condition being satisfied, wherein
- the first condition and the second condition include a condition that the user equipment completes data transmission to the base station.
A user equipment in a mobile communication system, the user equipment comprising:
- a receiver configured to receive, in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC release message including a first condition for releasing an RRC connection or a second condition for suspending the RRC connection;
- and
- deferring transitioning the user equipment to an RRC inactive mode or an RRC idle mode until the first condition or the second condition is satisfied even after receiving the RRC release message;
- a controller configured to perform data communication with the base station until the first condition or the second condition is satisfied even after receiving the RRC release message, wherein
- the controller is configured to:
- make the user equipment transition to an RRC idle mode in response to the first condition being satisfied;
- and
- make the user equipment transition to an RRC inactive mode in response to the second condition being satisfied, wherein
- the first condition and the second condition include a condition that the user equipment completes data transmission to the base station.
A communication control method in a mobile communication system, the communication control method comprising:
- receiving, by a user equipment in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC release message indicating suspension of an RRC connection and including a predetermined condition for transitioning an RRC inactive mode autonomously to an RRC idle mode;
- transitioning the user equipment to the RRC inactive mode in response to the user equipment receiving the RRC release message;
- and
- after receiving the RRC release message including the predetermined condition, transitioning the user equipment in the RRC inactive mode autonomously to the RRC idle mode in response to the predetermined condition being satisfied, wherein
- the predetermined condition includes a condition that a trigger for the user equipment to transition to the RRC connected mode does not occur within a predetermined time after the user equipment transitions to the RRC inactive mode.
A user equipment in a mobile communication system, the user equipment comprising:
- a receiver configured to receive, in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC message indicating suspension of an RRC connection and including a predetermined condition for transitioning an RRC inactive mode autonomously to an RRC idle mode;
- and
- a controller configured to make the user equipment transition to the RRC inactive mode in response to receiving the RRC release message, wherein
- the controller is configured to autonomously make the user equipment transition from the RRC inactive mode to the RRC idle mode in response to the predetermined condition being satisfied after receiving the RRC release message including the predetermined condition, wherein
- the predetermined condition includes a condition that a trigger for the user equipment to transition to the RRC connected mode does not occur within a predetermined time after the user equipment transitions to the RRC inactive mode.
Dependencies are inferred from the claim text.