US 12,470,356 B2
Cross carrier beam indication
Emad N. Farag, Flanders, NJ (US); Eko Onggosanusi, Coppell, TX (US); and Dalin Zhu, Allen, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 19, 2022, as Appl. No. 18/068,452.
Claims priority of provisional application 63/322,542, filed on Mar. 22, 2022.
Claims priority of provisional application 63/296,358, filed on Jan. 4, 2022.
Prior Publication US 2023/0216645 A1, Jul. 6, 2023
Int. Cl. H04L 5/00 (2006.01); H04L 1/1812 (2023.01); H04W 72/0453 (2023.01); H04W 72/1273 (2023.01)
CPC H04L 5/0055 (2013.01) [H04L 1/1812 (2013.01); H04W 72/0453 (2013.01); H04W 72/1273 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to:
receive configuration information for a list of transmission configuration indicator (TCI) states,
receive configuration information for a list of TCI state code points, wherein a TCI state code point from the list of TCI state code points indicates a TCI state for a first carrier and a TCI state for a second carrier,
receive configuration information for cross carrier scheduling,
receive a downlink control information (DCI) format including (i) a carrier indicator field associated with the configuration information for cross carrier scheduling and (ii) a transmission configuration indication field indicating the TCI state code point;
receive a list of component carriers that corresponds to a same TCI state identifier (ID), wherein a carrier indicated by the carrier indicator field of the DCI format is included in the list of component carriers; and
a processor operably coupled to the transceiver, the processor configured to apply the indicated TCI state code point for the first carrier and the second carrier and all carriers in the list of components carriers,
wherein the transceiver is further configured to receive or transmit, on the first and second carriers, downlink (DL) channels or uplink (UL) channels, respectively, based on quasi-co-location properties or spatial properties corresponding to the indicated TCI state code point,
wherein the application of the indicated TCI state code point for the carriers in the list of component carriers is after a configured time from a last symbol of a channel conveying hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback corresponding to the DCI format, and
wherein the configured time depends on a carrier with a smallest sub-carrier spacing among a carrier on which the DCI format was received and the carriers in the list of component carriers that use the indicated TCI state code point.