US 11,723,049 B2
Beam management in a wireless network
Fengjun Xi, San Diego, CA (US); Wei Chen, San Diego, CA (US); Kyle Jung-Lin Pan, Saint James, NY (US); Moon-il Lee, Melville, NY (US); and Chunxuan Ye, San Diego, CA (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 16/763,609
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Nov. 15, 2018, PCT No. PCT/US2018/061267
§ 371(c)(1), (2) Date May 13, 2020,
PCT Pub. No. WO2019/099659, PCT Pub. Date May 23, 2019.
Application 16/763,609 is a continuation of application No. PCT/US2018/061267, filed on Nov. 15, 2018.
Claims priority of provisional application 62/716,215, filed on Aug. 8, 2018.
Claims priority of provisional application 62/652,805, filed on Apr. 4, 2018.
Claims priority of provisional application 62/630,649, filed on Feb. 14, 2018.
Claims priority of provisional application 62/615,715, filed on Jan. 10, 2018.
Claims priority of provisional application 62/586,612, filed on Nov. 15, 2017.
Prior Publication US 2020/0288479 A1, Sep. 10, 2020
Int. Cl. H04W 72/04 (2009.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04L 5/00 (2006.01); H04W 24/08 (2009.01); H04W 76/27 (2018.01); H04W 80/02 (2009.01); H04W 72/23 (2023.01); H04W 72/53 (2023.01)
CPC H04W 72/53 (2023.01) [H04B 7/0626 (2013.01); H04B 7/088 (2013.01); H04L 5/0051 (2013.01); H04L 5/0092 (2013.01); H04W 24/08 (2013.01); H04W 72/23 (2023.01); H04W 76/27 (2018.02); H04W 80/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to determine that a first beam is associated with a first control resource set (CORESET) and that a second beam is associated with a second CORESET; and
a transceiver configured to receive at least one physical downlink control channel (PDCCH) transmission in a slot via one of the CORESETS, the PDCCH transmission comprising downlink control information (DCI), the DCI comprising scheduling information for a data transmission received via a physical downlink shared channel (PDSCH) transmission, the DCI comprising an indication of a beam for receiving the data transmission via the PDSCH transmission;
wherein the processor is further configured to:
determine whether to receive the data transmission via the beam indicated via the indication comprised in the DCI or via a reference beam associated with a reference CORESET, wherein the WTRU is configured to receive the data transmission via the reference beam associated with the reference CORESET based on a scheduling offset associated with the data transmission received via the PDSCH transmission being less than a threshold, and the WTRU is configured to receive the data transmission via the beam indicated via the indication in the DCI based on the scheduling offset associated with the data transmission received via the PDSCH transmission being greater than or equal to the threshold;
on condition that the scheduling offset associated with the data transmission received via the PDSCH transmission is less than the threshold, determine whether the first CORESET or the second CORESET is the reference CORESET for the data transmission received via the PDSCH transmission, wherein the WTRU is configured to determine which CORESET is the reference CORESET based on the slot, wherein the first CORESET is determined to be the reference CORESET for the data transmission based on the slot; and
wherein the transceiver is further configured to:
receive the data transmission via the PDSCH transmission using the first beam associated with the first CORESET when the scheduling offset associated with the data transmission received via the PDSCH transmission is less than the threshold, or
receive the data transmission via the PDSCH transmission using the beam indicated via the indication comprised in the DCI when the scheduling offset associated with the data transmission received via the PDSCH transmission is greater than or equal to the threshold.