Beam indication information transmission

Abstract

Technology for user equipment (UE) operable to decode beam indication related information received from a New Radio (NR) base station in a physical downlink shared channel (PDSCH) is disclosed. The UE can decode a transmission configuration indication (TCI) received in a downlink control information (DCI) from the NR base station on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC). The UE can decode a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of beam indication related information in a physical downlink shared channel (PDSCH). The UE can decode the beam indication related information received from the NR base station in the PDSCH on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission.

What is claimed is: 
     
         1 . An apparatus of a user equipment (UE) operable to decode beam indication related information received from a New Radio (NR) base station in a physical downlink shared channel (PDSCH), the apparatus comprising:
 decode, at the UE, a transmission configuration indication (TCI) received in a downlink control information (DCI) from the NR base station on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC), wherein cross-carrier scheduling for the scheduled BPW or the scheduled CC is used for the UE in a NR network;   decode, at the UE, a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of beam indication related information in a physical downlink shared channel (PDSCH);   decode, at the UE, the beam indication related information received from the NR base station in the PDSCH on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission; and   determine, at the UE, a quasi-co location (QCL) for reception of the beam indication related information in the PDSCH based on the TCI, when the time period is greater than or equal to the scheduling offset relative for the PDCCH transmission, and   a memory interface configured to send to a memory the TCI, the scheduling offset and the beam indication related information.   
     
     
         2 . The apparatus of  claim 1 , further comprising a transceiver configured to:
 receive the TCI from the NR base station;   receive the scheduling offset from the NR base station; and   receive the beam indication related information from the NR base station.   
     
     
         3 . The apparatus of  claim 1 , wherein the PDSCH is spatially QCLed with a corresponding downlink reference signal in the TCI when the TCI is included in the scheduling PDCCH and the scheduling offset is greater than or equal to a defined threshold. 
     
     
         4 . The apparatus of  claim 1 , wherein N TCI states are configured for the scheduled BWP or the scheduled CC, wherein N is a positive integer, and the TCI is selected from the N TCI states for the scheduled BWP or the scheduled CC. 
     
     
         5 . The apparatus of  claim 1 , wherein the TCI is included in the scheduling PDCCH when no control resource set (CORESET) is configured or a monitoring occasion of the CORESET is after a data transmission in the PDSCH in the scheduled BWP or the scheduled CC with the PDSCH transmission, and the TCI is included in the scheduling PDCCH with a scheduling delay that is greater than or equal to a defined threshold. 
     
     
         6 . The apparatus of  claim 5 , wherein the CORESET indicates monitoring CORESETs for the UE, and the CORSET is for one or more of a unicast PDSCH transmission or a broadcast PDSCH transmission. 
     
     
         7 . The apparatus of  claim 1 , wherein the PDSCH is spatially QCLed with a control resource set (CORESET) identifier (ID) in a slot of a target BWP or a target CC with a data transmission in the PDSCH, when the scheduling offset is less than a defined threshold. 
     
     
         8 . The apparatus of  claim 1 , wherein the UE expects the TCI to be present in the scheduling PDCCH with a scheduling delay that is longer than or equal to a defined threshold. 
     
     
         9 . An apparatus of a New Radio (NR) base station operable to encode beam indication related information for transmission in a physical downlink shared channel (PDSCH) to a user equipment (UE), the apparatus comprising:
 one or more processors configured to:   encode, at the NR base station, a transmission configuration indication (TCI) in a downlink control information (DCI) for transmission to the UE on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC), wherein cross-carrier scheduling for the scheduled BPW or the scheduled CC is used for the UE in a NR network;   encode, at the NR base station, a scheduling offset for transmission to the UE, wherein the scheduling offset is an offset time for transmission of beam indication related information in a physical downlink shared channel (PDSCH); and   encode, at the NR base station, the beam indication related information in the PDSCH for transmission to the UE on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission,   wherein the TCI enables the UE to determine a quasi-co location (QCL) for reception of the beam indication related information in the PDSCH when the time period is greater than or equal to the scheduling offset relative for the PDCCH transmission, and   a memory interface configured to retrieve from a memory the TCI, the scheduling offset and the beam indication related information.   
     
     
         10 . The apparatus of  claim 9 , further comprising a transceiver configured to:
 transmit the TCI to the UE;   transmit the scheduling offset to the UE; and   transmit the beam indication related information to the UE.   
     
     
         11 . The apparatus of  claim 9 , wherein the PDSCH is spatially QCLed with a corresponding downlink reference signal in the TCI when the TCI is included in the scheduling PDCCH and the scheduling offset is greater than or equal to a defined threshold. 
     
     
         12 . The apparatus of  claim 9 , wherein N TCI states are configured for the scheduled BWP or the scheduled CC, wherein N is a positive integer, and the TCI is selected from the N TCI states for the scheduled BWP or the scheduled CC. 
     
     
         13 . The apparatus of  claim 9 , wherein the TCI is included in the scheduling PDCCH when no control resource set (CORESET) is configured or a monitoring occasion of the CORESET is after a data transmission in the PDSCH in the scheduled BWP or the scheduled CC with the PDSCH transmission, and the TCI is included in the scheduling PDCCH with a scheduling delay that is greater than or equal to a defined threshold. 
     
     
         14 . The apparatus of  claim 13 , wherein the CORESET indicates monitoring CORESETs for the UE, and the CORSET is for one or more of a unicast PDSCH transmission or a broadcast PDSCH transmission. 
     
     
         15 . The apparatus of  claim 9 , wherein the PDSCH is spatially QCLed with a control resource set (CORESET) identifier (ID) in a slot of a target BWP or a target CC with a data transmission in the PDSCH, when the scheduling offset is less than a defined threshold. 
     
     
         16 . The apparatus of  claim 9 , wherein the UE expects the TCI to be present in the scheduling PDCCH with a scheduling delay that is longer than or equal to a defined threshold. 
     
     
         17 . At least one non-transitory machine readable storage medium having instructions embodied thereon for encoding beam indication related information for transmission in a physical downlink shared channel (PDSCH) from a New Radio (NR) base station to a user equipment (UE), the instructions when executed by one or more processors at the NR base station perform the following:
 decoding, at the UE, a transmission configuration indication (TCI) received in a downlink control information (DCI) from the NR base station on a scheduling physical downlink control channel (PDCCH) in a scheduled bandwidth part (BWP) or a scheduled component carrier (CC), wherein cross-carrier scheduling for the scheduled BPW or the scheduled CC is used for the UE in a NR network;   decoding, at the UE, a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of beam indication related information in a physical downlink shared channel (PDSCH);   decoding, at the UE, the beam indication related information received from the NR base station in the PDSCH on the scheduled BWP or the scheduled CC at a time period greater than or equal to the scheduling offset relative to the PDCCH transmission; and   determining, at the UE, a quasi-co location (QCL) for reception of the beam indication related information in the PDSCH based on the TCI, when the time period is greater than or equal to the scheduling offset relative for the PDCCH transmission.   
     
     
         18 . The at least one non-transitory machine readable storage medium of  claim 17 , wherein the PDSCH is spatially QCLed with a corresponding downlink reference signal in the TCI when the TCI is included in the scheduling PDCCH. 
     
     
         19 . The at least one non-transitory machine readable storage medium of  claim 17 , wherein N TCI states are configured for the scheduled BWP or the scheduled CC, wherein N is a positive integer, and the TCI is selected from the N TCI states for the scheduled BWP or the scheduled CC. 
     
     
         20 . The at least one non-transitory machine readable storage medium of  claim 17 , wherein the TCI is included in the scheduling PDCCH when no control resource set (CORESET) is configured or a monitoring occasion of the CORESET is after a data transmission in the PDSCH in the scheduled BWP or the scheduled CC with the PDSCH transmission, and the TCI is included in the scheduling PDCCH with a scheduling delay that is greater than or equal to a defined threshold. 
     
     
         21 . The at least one non-transitory machine readable storage medium of  claim 20 , wherein the CORESET indicates monitoring CORESETs for the UE, and the CORSET is for one or more of a unicast PDSCH transmission or a broadcast PDSCH transmission. 
     
     
         22 . The at least one non-transitory machine readable storage medium of  claim 17 , wherein the PDSCH is spatially QCLed with a control resource set (CORESET) identifier (ID) in a slot of a target BWP or a target CC with a data transmission in the PDSCH, when the scheduling offset is less than a defined threshold.