System and Method for Control Channel Reception in Power Save Mode
AssigneeHuawei Technologies Co., Ltd.
InventorsYoung Hoon Kwon, Pengfei Xia
Life of this patent
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Abstract
A method implemented by an access node includes transmitting, by the access node, a wake up signal (WUS) prior to a control channel occurring within an associated discontinuous reception (DRX) ON period, wherein the WUS is transmitted using a first beam, and transmitting, by the access node, the control channel during the associated DRX ON period, wherein the control channel is transmitted on a control resource set (CORESET) using a second beam, wherein the first and second beams share a common quasi-colocated (QCL) source.
Claims32
A method comprising:
- connecting, by a user equipment (UE), to a cellular network in a discontinuous reception (DRX) mode;
- determining, by the UE, that a media access control (MAC) entity of the UE will be in Active Time during a portion of a scheduled time for monitoring for a first wakeup indication, wherein the first wakeup indication indicates whether a physical downlink control channel (PDCCH) reception is scheduled during a first DRX ON period following the scheduled time of the first wakeup indication;
- and
- not monitoring, by the UE, the PDCCH for reception of the first wakeup indication, during the portion of the scheduled time during which the UE will be in the Active Time.
A user equipment (UE) comprising:
- at least one processor;
- and
- a non-transitory computer readable storage medium storing programming, the programming including instructions that, when executed by the at least one processor, cause the UE to perform operations including:
- connecting to a cellular network in a discontinuous reception (DRX) mode;
- determining that a media access control (MAC) entity of the UE will be in Active Time during a portion of a scheduled time for monitoring for a first wakeup indication, wherein the first wakeup indication indicates whether a physical downlink control channel (PDCCH) reception is scheduled during a first DRX ON period following the scheduled time of the first wakeup indication;
- and
- not monitoring the PDCCH for reception of the first wakeup indication, during the portion of the scheduled time during which the UE will be in the Active Time.
The UE of claim 9, wherein the scheduled time further includes a second portion outside the Active Time, the operations further comprising:
- monitoring the PDCCH for the reception of the first wakeup indication during the second portion of the scheduled time.
A method comprising:
- connecting, by a base station in a cellular network, with a user equipment (UE) in a discontinuous reception (DRX) mode;
- determining, by the base station, that a media access control (MAC) entity of the UE will be in Active Time during a portion of a scheduled time for monitoring for a first wakeup indication, wherein the first wakeup indication indicates whether a physical downlink control channel (PDCCH) transmission is scheduled during a first DRX ON period following the scheduled time of the first wakeup indication;
- and
- not transmitting, by the base station, the first wakeup indication, during the portion of the scheduled time during which the UE will be in the Active Time.
The method of claim 17, wherein the scheduled time further includes a second portion outside the Active Time, the method further comprising:
- transmitting, by the base station, the first wakeup indication during the second portion of the scheduled time.
The method of claim 17, further comprising:
- transmitting, by the base station, a second wakeup indication, wherein the second wakeup indication indicates whether a second PDCCH transmission is scheduled during a second DRX ON period;
- and
- transmitting, by the base station, the second PDCCH transmission during the second DRX ON period after receiving the second wakeup indication.
The method of claim 20, wherein the second wakeup indication is transmitted at a predetermined time window before the second DRX ON period.
A base station comprising:
- at least one processor;
- and
- a non-transitory computer readable storage medium storing programming, the programming including instructions that, when executed by the at least one processor, cause the base station to perform operations including:
- connecting with a user equipment (UE) in a discontinuous reception (DRX) mode;
- determining that a media access control (MAC) entity of the UE will be in Active Time during a portion of a scheduled time for monitoring for a first wakeup indication, wherein the first wakeup indication indicates whether a physical downlink control channel (PDCCH) transmission is scheduled during a first DRX ON period following the scheduled time of the first wakeup indication;
- and
- not transmitting the first wakeup indication, during the portion of the scheduled time during which the UE will be in the Active Time.
Dependencies are inferred from the claim text.