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US 2019/0174408 A1Published application
Implicit DRX Cycle Length Adjustment Control in LTE Active Mode
AssigneeInterDigital Technology Corporation
InventorsStephen E. Terry, Peter S. Wang, Jin Wang
Life of this patent
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Abstract
A method for controlling discontinuous reception in a wireless transmit/receive unit includes defining a plurality of DRX levels, wherein each DRX level includes a respective DRX cycle length and transitioning between DRX levels based on a set of criteria. The transitioning may be triggered by implicit rules.
Claims20
A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
- the WTRU receiving a radio resource control (RRC) message, the RRC message comprising information elements (IEs) that indicate a first DRX cycle length and a second DRX cycle length;
- the WTRU receiving a DRX trigger;
- the WTRU determining whether to perform DRX using the first DRX cycle length indicated in the RRC message or the second DRX cycle length indicated in the RRC message based on the received DRX trigger, wherein the WTRU performs DRX using the first DRX cycle length if the received DRX trigger is a first type of DRX trigger and the WTRU performs DRX using the second DRX cycle length if the received DRX trigger is a second type of DRX trigger, the second DRX cycle length being a multiple of the first DRX cycle length;
- and
- the WTRU performing DRX using the DRX cycle length indicated by the received DRX trigger.
2 more elements
A wireless transmit/receive unit (WTRU) comprising a processor and memory configured to:
- receive a radio resource control (RRC) message, the RRC message comprising information elements (IEs) that indicate a first DRX cycle length and a second DRX cycle length;
- receive a DRX trigger;
- determine whether to perform DRX using the first DRX cycle length indicated in the RRC message or the second DRX cycle length indicated in the RRC message based on the received DRX trigger, wherein the WTRU is configured to perform DRX using the first DRX cycle length if the received DRX trigger is a first type of DRX trigger and the WTRU is configured to perform DRX using the second DRX cycle length if the received DRX trigger is a second type of DRX trigger, the second DRX cycle length being a multiple of the first DRX cycle length;
- and
- perform DRX using the DRX cycle length indicated by the received DRX trigger.
2 more elements
A base station comprising a processor and memory configured to:
- send a radio resource control (RRC) message to a wireless transmit/receive unit (WTRU), the RRC message comprising information elements (IEs) that indicate a first DRX cycle length and a second DRX cycle length;
- and
- send a DRX trigger to the WTRU, wherein the DRX trigger is one of a first type of DRX trigger or a second type of DRX trigger, wherein the first type of DRX trigger indicates to the WTRU that the WTRU should perform DRX using the first DRX cycle length and the second type of DRX trigger indicates to the WTRU that the WTRU should perform DRX using the second DRX cycle length, the first DRX cycle length being a multiple of the first DRX cycle length.
Dependencies are inferred from the claim text.