US 12,470,280 B2
Beam indication based on TCI state group
Young Woo Kwak, Woodbury, NY (US); Moon-il Lee, Melville, NY (US); Paul Marinier, Brossard (CA); Virgil Comsa, Montreal (CA); Afshin Haghighat, Ile-Bizard (CA); and Prasanna Herath, Laval (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 18/019,593
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Jul. 30, 2021, PCT No. PCT/US2021/043982
§ 371(c)(1), (2) Date Feb. 3, 2023,
PCT Pub. No. WO2022/031546, PCT Pub. Date Feb. 10, 2022.
Claims priority of provisional application 63/185,490, filed on May 7, 2021.
Claims priority of provisional application 63/091,691, filed on Oct. 14, 2020.
Claims priority of provisional application 63/061,644, filed on Aug. 5, 2020.
Prior Publication US 2023/0216565 A1, Jul. 6, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04W 72/23 (2023.01)
CPC H04B 7/0623 (2013.01) [H04B 7/0632 (2013.01); H04B 7/0695 (2013.01); H04B 7/088 (2013.01); H04W 72/23 (2023.01)] 13 Claims
OG exemplary drawing
 
1. A wireless transmit-receive unit (WTRU), comprising:
a processor configured to:
receive configuration information that indicates a first transmission configuration indicator (TCI) state group and a second TCI state group, wherein the first TCI state group comprises at least a first TCI state and a third TCI state and the second TCI state group comprises at least a second TCI state, and wherein the first TCI state is associated with a first downlink reference signal, the second TCI state is associated with a second downlink reference signal, and the third TCI state is associated with a third downlink reference signal;
measure a first downlink power value and a first power reduction value that are associated with the first downlink reference signal;
measure a second downlink power value and a second power reduction value that are associated with the second downlink reference signal;
measure a third downlink power value and a third power reduction value that are associated with the third downlink reference signal;
report the first downlink power value, the first power reduction value, the second downlink power value, and the second power reduction value;
report the third downlink power value and the third power reduction value;
receive, via a downlink transmission, an indication to use the first TCI state group for an uplink transmission, wherein the downlink transmission comprises scheduling information for the uplink transmission;
determine the first TCI state from the first TCI state group based at least on the first downlink power value and the first power reduction value, wherein the processor being configured to determine the first TCI state from the first TCI state group based at least on the first downlink power value and the first power reduction value comprises the processor being further configured to:
compare the first downlink power value and first power reduction value with the third downlink power value and third power reduction value in response to receiving the indication of the first TCI state group, and
determine the first TCI state from the first TCI group based on a comparison of the first downlink power value and first power reduction value with the third downlink power value and the third power reduction value; and
send the uplink transmission based on the first TCI state.