Downlink control channel signaling for improved power consumption at a user equipment (ue)

Abstract

Technology for a user equipment (UE) operable to decode a channel state information reference signal (CSI-RS) resource received from a Next Generation NodeB (gNB) is disclosed. The UE can decode a downlink control channel signal received from the gNB in a first bandwidth part. The downlink control channel signal may include an index of a second bandwidth part, and an indication of a CSI-RS transmission in the second bandwidth part having the index. The UE can switch from the first bandwidth part to the second bandwidth part. The UE can decode the CSI-RS transmission received from 10 the gNB in the second bandwidth part.

1 - 20 . (canceled) 
     
     
         21 . An apparatus of a user equipment (UE) operable to decode a channel state information reference signal (CSI-RS) resource received from a Next Generation NodeB (gNB), the apparatus comprising one or more processors to:
 decode, at the UE, a downlink control channel signal received from the gNB in a first bandwidth part, wherein the downlink control channel signal includes:   an index of a second bandwidth part, and   an indication of a CSI-RS transmission in the second bandwidth part having the index;   switch, at the UE, from the first bandwidth part to the second bandwidth part; and   decode, at the UE, the CSI-RS transmission received from the gNB in the second bandwidth part; and   a memory interface coupled to the one or more processors and configured to send to a memory the downlink control channel signal.   
     
     
         22 . The apparatus of  claim 21 , further comprising a transceiver configured to:
 receive the downlink control channel signal from the gNB; and   receive the CSI-RS from the gNB.   
     
     
         23 . The apparatus of  claim 21 , wherein the CSI-RS is transmitted in an aperiodic CSI-RS resource, wherein the aperiodic CSI-RS resource is one instance of a CSI-RS transmission, wherein downlink control information (DCI) indicates the aperiodic CSI-RS resource of an aperiodic CSI RS transmission in the second bandwidth part. 
     
     
         24 . The apparatus of  claim 21 , wherein the one or more processors are configured to decode the downlink control channel signal received by an uplink scheduling grant in downlink control information (DCI) in a physical downlink control channel (PDCCH). 
     
     
         25 . The apparatus of  claim 24 , wherein the DCI in the PDCCH indicates a time offset from the downlink control channel signal in the first bandwidth part to the CSI-RS resource in the second bandwidth part. 
     
     
         26 . The apparatus of  claim 24 , wherein:
 the DCI in the PDCCH includes a field, wherein the field indicates an index of a CSI-RS resource configuration or resource set, and the index of the second bandwidth part; or   the DCI in the PDCCH includes a first field that indicates an index of a CSI-RS resource configuration or resource set, and a second field that indicates the index of the second bandwidth part.   
     
     
         27 . The apparatus of  claim 21 , wherein the downlink control channel signal is a wakeup signal for the UE when the UE is operating in a discontinuous reception (DRX) mode. 
     
     
         28 . The apparatus of  claim 21 , wherein the CSI-RS is a periodic CSI-RS resource. 
     
     
         29 . An apparatus of a user equipment (UE) operable to decode downlink data received from a Next Generation NodeB (gNB), the apparatus comprising one or more processors to:
 decode, at the UE, a downlink control information (DCI) received from the gNB in a physical downlink control channel (PDCCH), wherein the DCI includes scheduling information for the UE for one or a plurality of physical downlink shared channels (PDSCHs) that span more than one slot;   decode, at the UE, downlink data received from the gNB over the plurality of PDSCHs that span more than one slot based on the DCI;   decode, at the UE, an indication for the UE to skip a PDCCH monitoring at a PDCCH monitoring occasion during reception of the downlink data from the gNB based on the DCI; and   skip, at the UE, the PDCCH monitoring at the PDCCH monitoring occasion during the reception of the downlink data based on the indication; and   a memory interface coupled to the one or more processors and configured to send to a memory the DCI.   
     
     
         30 . The apparatus of  claim 29 , further comprising a transceiver configured to:
 receive the DCI from the gNB; and   receive the downlink data from the gNB.   
     
     
         31 . The apparatus of  claim 29 , wherein the DCI includes a bit field with the indication to skip the PDCCH monitoring at the PDCCH monitoring occasion during reception of the downlink data. 
     
     
         32 . The apparatus of  claim 29 , wherein the one or more processors are configured to skip the PDCCH monitoring at the PDCCH monitoring occasion for a duration which is implicitly derived from a duration of the downlink data received over the more than one slot. 
     
     
         33 . The apparatus of  claim 29 , wherein the DCI in the PDCCH schedules one or multiple transport blocks over multiple slots. 
     
     
         34 . The apparatus of  claim 29 , wherein the one or more processors are configured to:
 concatenate multiple hybrid automatic repeat request (HARQ) feedbacks for the downlink data to form concatenated HARQ feedback; and   encode a single uplink control information (UCI) message that includes the concatenated HARQ feedback for transmission to the gNB.   
     
     
         35 . At least one machine readable storage medium having instructions embodied thereon for decoding a channel state information reference signal (CSI-RS) resource received from a Next Generation NodeB (gNB), the instructions when executed by one or more processors to perform the following:
 decoding, at a user equipment (UE), a downlink control channel signal received from the gNB in a first bandwidth part, wherein the downlink control channel signal includes:   an index of a second bandwidth part, and   an indication of a CSI-RS resource in the second bandwidth part having the index;   retuning, at the UE, from the first bandwidth part to the second bandwidth part; and   decoding, at the UE, the CSI-RS resource received from the gNB in the second bandwidth part.   
     
     
         36 . The at least one machine readable storage medium of  claim 35 , wherein the CSI-RS is transmitted in an aperiodic CSI-RS resource, wherein the aperiodic CSI-RS resource is one instance of a CSI-RS transmission, wherein downlink control information (DCI) indicates the aperiodic CSI-RS resource of an aperiodic CSI RS transmission in the second bandwidth part. 
     
     
         37 . The at least one machine readable storage medium of  claim 35 , further comprising instructions when executed perform the following: decoding the downlink control channel signal received by an uplink scheduling grant in downlink control information (DCI) in a physical downlink control channel (PDCCH). 
     
     
         38 . The at least one machine readable storage medium of  claim 37 , wherein the DCI in the PDCCH indicates a time offset from the downlink control channel signal in the first bandwidth part to the CSI-RS resource in the second bandwidth part. 
     
     
         39 . The at least one machine readable storage medium of  claim 37 , wherein:
 the DCI in the PDCCH includes a field, wherein the field indicates an index of a CSI-RS resource configuration or resource set, and the index of the second bandwidth part; or   the DCI in the PDCCH includes a first field that indicates an index of a CSI-RS resource configuration or resource set, and a second field that indicates the index of the second bandwidth part.   
     
     
         40 . The at least one machine readable storage medium of  claim 35 , wherein the downlink control channel signal is a wakeup signal for the UE when the UE is operating in a discontinuous reception (DRX) mode.