Configuring a wakeup signal
Apparatuses, methods, and systems are disclosed for configuring a wakeup signal. One method includes receiving, at a user equipment, a discontinuous reception configuration including a slot offset, and/or an on-duration a periodicity. The method includes receiving a wakeup signal configuration including a wakeup signal offset and/or a monitoring occasion. The wakeup signal configuration is received using scrambled downlink control information signaling. The method includes receiving information indicating to transmit a sounding reference signal during a discontinuous reception sleep period in a sounding reference signal resource using a transmit beam, and/or a transmit spatial filter. The method includes receiving a control signal using a corresponding receive beam and/or receive spatial filter. The method includes configuring a spatial filter relationship between the sounding reference signal resource and wakeup signal reception using downlink control information signal.
1 . A method performed by a user equipment (UE), the method comprising:
receiving a discontinuous reception (DRX) configuration comprising a slot offset, an on-duration, and a periodicity;
receiving a wakeup signal configuration comprising a wakeup signal offset, or a monitoring occasion, or both, wherein the wakeup signal configuration is received using scrambled downlink control information (DCI) signaling;
receiving information indicating to transmit a sounding reference signal (SRS) during a DRX sleep period in a SRS resource using a transmit beam, or a transmit spatial filter, or both, wherein transmitting the SRS during the DRX sleep period enables beam alignment for wakeup signal reception prior to a next DRX on-duration;
receiving a control signal using a corresponding receive beam, or a receive spatial filter, or both; and
receiving, via scrambled DCI associated with the wakeup signal, an indication that configures a spatial filter relationship between the SRS resource used during the DRX sleep period and the receive beam or receive spatial filter used for wakeup signal monitoring.
2 . The method of claim 1 , wherein the control signal is received using a plurality of control resource sets, and each control resource set of the plurality of control resource sets is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
3 . The method of claim 1 , wherein the control signal is received using a plurality of search spaces, and each search space of the plurality of search spaces is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
4 . The method of claim 1 , wherein the control signal is received using a plurality of monitoring occasions, and each monitoring occasion of the plurality of monitoring occasions is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
5 . The method of claim 1 , further comprising activating a semi-persistent SRS resource during the DRX sleep period implicitly, and deactivation the semi-persistent SRS resource during a DRX on-period.
6 . The method of claim 1 , further comprising activating a semi-persistent SRS resource during the DRX sleep period using a medium access control (MAC) control element (CE) in a previous DRX on-duration period.
7 . A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive a discontinuous reception (DRX) configuration comprising a slot offset, an on-duration, and a periodicity;
receive a wakeup signal configuration comprising a wakeup signal offset, or a monitoring occasion, or both, wherein the wakeup signal configuration is received using scrambled downlink control information (DCI) signaling;
receive information indicating to transmit a sounding reference signal (SRS) during a DRX sleep period in a SRS resource using a transmit beam, or a transmit spatial filter, or both, wherein transmitting the SRS during the DRX sleep period enables beam alignment for wakeup signal reception prior to a next DRX on-duration;
receive a control signal using a corresponding receive beam, or a receive spatial filter, or both; and
receive, via scrambled DCI associated with the wakeup signal, an indication that configures a spatial filter relationship between the SRS resource used during the DRX sleep period and the receive beam or receive spatial filter used for wakeup signal monitoring.
8 . The UE of claim 7 , wherein the control signal is received using a plurality of control resource sets, and each control resource set of the plurality of control resource sets is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
9 . The UE of claim 7 , wherein the control signal is received using a plurality of search spaces, and each search space of the plurality of search spaces is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
10 . The UE of claim 7 , wherein the control signal is received using a plurality of monitoring occasions, and each monitoring occasion of the plurality of monitoring occasions is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
11 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to activate a semi-persistent SRS resource during the DRX sleep period implicitly, and deactivate the semi-persistent SRS resource during a DRX on-period.
12 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to activate a semi-persistent SRS resource during the DRX sleep period using a medium access control (MAC) control element (CE) in a previous DRX on-duration period.
13 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to start SRS beam sweeping based on a beam, or a spatial filter, or both previously used to receive a physical downlink control channel (PDCCH) transmission in a previous DRX on-period.
14 . The UE of claim 13 , wherein a measurement corresponding to the beam, or the spatial filter, or both is above a predetermined threshold.
15 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to, in response to failing to decode the control signal using a configured beam in at least one monitoring occasion, implicitly trigger SRS transmission for beam alignment.
16 . The UE of claim 7 , wherein the at least one processor is configured to cause the UE to receive a first physical downlink control channel (PDCCH) in a next occurrence of a DRX on-period using a beam, or a spatial filter, or both used for receiving the control signal.
17 . The UE of claim 7 , wherein the control signal comprises a DCI wakeup signal.
18 . A base station, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the base station to:
transmit a discontinuous reception (DRX) configuration comprising a slot offset, an on-duration, and a periodicity;
transmit a wakeup signal configuration comprising a wakeup signal offset, or a monitoring occasion, or both, wherein the wakeup signal configuration is received using scrambled downlink control information (DCI) signaling;
transmit information indicating to transmit a sounding reference signal (SRS) during a DRX sleep period in a SRS resource using a transmit beam, or a transmit spatial filter, or both, wherein transmitting the SRS during the DRX sleep period enables beam alignment for wakeup signal reception prior to a next DRX on-duration;
a control signal using a corresponding receive beam, or a receive spatial filter, or both; and
transmit, via scrambled DCI associated with the wakeup signal, an indication that configures a spatial filter relationship between the SRS resource used during the DRX sleep period and the receive beam or receive spatial filter used for wakeup signal monitoring.
19 . The base station of claim 18 , wherein the control signal is received using a plurality of control resource sets, and each control resource set of the plurality of control resource sets is assigned to a beam, or a spatial filter, or both corresponding to the SRS.
20 . The base station of claim 18 , wherein the control signal is received using a plurality of search spaces, and each search space of the plurality of search spaces is assigned to a beam, or a spatial filter, or both corresponding to the SRS.