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US 2018/0020502 A1Published application
Radio terminal
AssigneeKYOCERA Corporation
InventorsMasato FUJISHIRO, Hiroyuki ADACHI
Life of this patent
Estimating the term…
Abstract
A base station comprises a transmitter configured to transmit, to a user terminal, information indicating at least any one of a first DRX cycle, a second DRX cycle, and a third DRX cycle. The DRX cycle indicates a cycle during which a user terminal discontinuously monitors a downlink control channel transmitted from a base station. The second DRX cycle has a cycle longer than the first DRX cycle. The third DRX cycle has a cycle longer than the second DRX cycle.
Claims14
A base station, comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- transmitting, to a user terminal, information indicating at least any one of a first DRX cycle, a second DRX cycle, and a third DRX cycle, wherein
- the DRX cycle indicates a cycle during which a user terminal discontinuously monitors a downlink control channel transmitted from a base station,
- the second DRX cycle has a cycle longer than the first DRX cycle, and
- the third DRX cycle has a cycle longer than the second DRX cycle.
2 more elements
A user terminal, comprising:
- a controller containing at least one processor and at least one memory, and configured to execute, in an RRC idle state, when an extended DRX cycle is configured, a process of monitoring a paging message in accordance with the extended DRX cycle.
A radio terminal comprising,
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in a connected mode, a downlink control channel, in either a DRX state or an extended DRX state having a DRX cycle longer than the DRX state, the DRX state including a long DRX state and a short DRX state;
- and
- transitioning from the long DRX state or the short DRX state to the extended DRX state in the long DRX state or the short DRX state, when a period during which a DRX cycle not receiving a control signal addressed to the radio terminal continues exceeds a first threshold value or when the number of times of DRX cycles not receiving a control signal addressed to the radio terminal exceeds the first threshold value.
1 more element
A radio terminal comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in a connected mode, a downlink control channel, in either a DRX state or an extended DRX state having a DRX cycle longer than the DRX state;
- and
- transitioning from the DRX state to the extended DRX state in the DRX state, when an MAC control element to instruct transition to the extended DRX state is received from a base station.
1 more element
A radio terminal comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in a connected mode, a downlink control channel, in either a DRX state or an extended DRX state having a DRX cycle longer than the DRX state;
- and
- transitioning, in the extended DRX state, to the DRX state upon data transmission to a base station or data reception from the base station, wherein
- the DRX state includes a long DRX state and a short DRX state;
- and
- a DRX state applicable when having transitioned to the DRX state upon the data transmission is different from a DRX state applicable when having transitioned to the DRX state upon the data reception.
4 more elements
A radio terminal comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in a connected mode, a downlink control channel, in either a DRX state or an extended DRX state having a DRX cycle longer than the DRX state, the DRX state including a long DRX state and a short DRX state;
- and
- transitioning, in the short DRX state, from the short DRX state to the extended DRX state, without transitioning from the short DRX state to the long DRX state.
1 more element
A radio terminal comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in a connected mode, a downlink control channel, in either a DRX state or an extended DRX state having a DRX cycle longer than the DRX state, the DRX state including a long DRX state and a short DRX state;
- and
- when configuration information for the extended DRX state and configuration information for the short DRX state are both provided, ignoring the configuration information for the short DRX state.
1 more element
A radio terminal comprising:
- a controller containing at least one processor and at least one memory, and configured to execute processes of
- discontinuously monitoring, in an idle mode, a downlink control channel, in either a DRX state or an extended DRX state having a paging cycle longer than the DRX state;
- transitioning from the DRX state to the extended DRX state in the DRX state, when a period during which a paging cycle not receiving a control signal addressed to the radio terminal continues exceeds a first threshold value or when the number of times of paging cycles not receiving a control signal addressed to the radio terminal exceeds the first threshold value.
Dependencies are inferred from the claim text.