Discontinuous reception (DRX) enhancements in LTE systems
First Claim
Patent Images
1. A user equipment, comprising:
- a system control module arranged to control communications via a communications interface; and
a processor, coupled to the system control module, the processor arranged to;
implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel (PDCCH) for control signals indicating resource allocations,monitor subframes after the active time, andimplement a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle, wherein a start offset of the long discontinuous reception cycle is set to seventy milliseconds to allow monitoring during a Hybrid Automatic Repeat Request (HARQ) timing period.
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Abstract
Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.
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Citations
24 Claims
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1. A user equipment, comprising:
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a system control module arranged to control communications via a communications interface; and a processor, coupled to the system control module, the processor arranged to; implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel (PDCCH) for control signals indicating resource allocations, monitor subframes after the active time, and implement a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle, wherein a start offset of the long discontinuous reception cycle is set to seventy milliseconds to allow monitoring during a Hybrid Automatic Repeat Request (HARQ) timing period. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A user equipment, comprising:
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a system control module arranged to control communications via a communications interface; and a processor, coupled to the system control module, the processor arranged to implement; an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on a physical downlink control channel (PDCCH) for resource allocations, and a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle, wherein a start offset of the long discontinuous reception cycle is set to seventy milliseconds to allow monitoring during a Hybrid Automatic Repeat Request (HARQ) timing period. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method for providing discontinuous reception monitoring of a physical downlink control channel, comprising:
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implementing an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on a physical downlink control channel for control signals; receiving a control signal in a subframe received on the physical downlink control channel; initiating decoding of the control signal during a time period associated with the subframe; determining whether the decoding of the control signal has been completed at the end of the subframe; and continuing to monitor subsequent subframes for control signals received on the physical downlink control channel after the active time, and implementing a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle and setting a start offset of the long discontinuous reception cycle to seventy milliseconds to allow monitoring during a Hybrid Automatic Repeat Request (HARQ) timing period. - View Dependent Claims (17, 18)
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19. A method for providing discontinuous reception monitoring of a physical downlink control channel, comprising:
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determining an active time for monitoring subframes on a physical downlink control channel (PDDCH) for resource allocations based on an inactivity timer and on-duration timer; implementing a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle; and setting a start offset of the long discontinuous reception cycle to seventy milliseconds to allow monitoring during a HARQ timing period. - View Dependent Claims (20, 21)
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22. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE) to communicate with an evolved NodeB (eNB), the one or more processors to configure the UE to:
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determine an active time for monitoring subframes on a physical downlink control channel (PDDCH) for resource allocations based on an inactivity timer and on-duration timer; implement a continuous reception mode, a short discontinuous reception cycle and a long discontinuous reception cycle; and set a start offset of the long discontinuous reception cycle to seventy milliseconds to allow monitoring during a HARQ timing period. - View Dependent Claims (23, 24)
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Specification