BEAM INDICATION INFORMATION TRANSMISSION

• US 20200137588A1
• Filed: 05/09/2019
• Published: 04/30/2020
• Est. Priority Date: 03/19/2018
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Zhang, Yushu, Davydov, Alexei, Chatterjee, Debdeep, Xiong, Gang, Wang, Guotong
• Granted Patent: US 11,102,661 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

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.

Claims

1-21. -21. (canceled)

22. An apparatus of a user equipment (UE) operable to decode downlink control information (DCI) that includes a transmission configuration indication (TCI) received from a New Radio (NR) base station, the apparatus comprising:

one or more processors configured to;

decode, at the UE, the TCI received in the DCI from the NR base station on a scheduling physical downlink control channel (PDCCH) on a scheduled component carrier (CC) or a scheduled bandwidth part (BWP);

decode, at the UE, a scheduling offset received from the NR base station, wherein the scheduling offset is an offset time for reception of a scheduled physical downlink shared channel (PDSCH);

decode, at the UE, the scheduled PDSCH received from the NR base station on the scheduled CC or the scheduled BWP at a time period greater than or equal to the scheduling offset relative to the scheduling PDCCH; and

determine, at the UE, a quasi-co location (QCL) for reception of the scheduled PDSCH based on the TCI received in the DCI; and

a memory interface configured to send to a memory the TCI and the scheduling offset.

23. The apparatus of claim 22, 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 scheduled PDSCH from the NR base station.

24. The apparatus of claim 22, wherein cross-carrier scheduling for the scheduled BPW or the scheduled CC is used for the UE in a NR network.

25. The apparatus of claim 22, wherein N TCI states are configured for the scheduled CC or the scheduled BWP, wherein N is a positive integer, and the TCI is selected from the N TCI states for the scheduled BWP or the scheduled CC.

26. The apparatus of claim 22, wherein the scheduled 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.

27. The apparatus of claim 22, wherein the one or more processors are configured to monitor one or more control resource sets (CORESETs) within the scheduled BWP.

28. 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.

29. The apparatus of claim 28, 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.

30. The apparatus of claim 28, 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.

31. The apparatus of claim 28, 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.

32. The apparatus of claim 28, 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.

33. The apparatus of claim 28, wherein the TCI is included in the scheduling PDCCH with a scheduling delay that is greater than or equal to a defined threshold, and a control resource set (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.

34. The apparatus of claim 28, 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.

35. The apparatus of claim 28, wherein the TCI is present in the scheduling PDCCH with a scheduling delay that is longer than or equal to a defined threshold.

36. 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.

37. The at least one non-transitory machine readable storage medium of claim 36, 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.

38. The at least one non-transitory machine readable storage medium of claim 36, 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.

39. The at least one non-transitory machine readable storage medium of claim 36, 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.

40. The at least one non-transitory machine readable storage medium of claim 36, wherein the TCI is included in the scheduling PDCCH with a scheduling delay that is greater than or equal to a defined threshold, and a control resource set (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.

41. The at least one non-transitory machine readable storage medium of claim 36, 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.

42. The at least one non-transitory machine readable storage medium of claim 36, further comprising instructions when executed perform the following:

determine that the TCI is to be present in the scheduling PDCCH with a scheduling delay that is longer than or equal to a defined threshold.