US 11,985,681 B2
Triggered hybrid automatic repeat request acknowledgement reporting for downlink semi-persistent scheduling data transmission
Karol Schober, Helsinki (FI); Renato Barbosa Abreu, Aalborg (DK); Kari Hooli, Oulu (FI); Timo Lunttila, Espoo (FI); and Klaus Hugl, Vienna (AT)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Filed by Nokia Technologies Oy, Espoo (FI)
Filed on Jun. 29, 2021, as Appl. No. 17/361,863.
Claims priority of provisional application 63/054,756, filed on Jul. 21, 2020.
Prior Publication US 2022/0030558 A1, Jan. 27, 2022
Int. Cl. H04W 72/04 (2023.01); H04L 1/18 (2023.01); H04L 1/1812 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 1/1812 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, by a user equipment from a network entity, a first downlink (DL) control signal activating semi-persistent scheduling (SPS) of a first set of downlink data transmissions, the first downlink control signal indicating an applicable hybrid automatic repeat request (HARQ) feedback timing for the first set of downlink data transmissions;
receiving one or more of the first set of downlink data transmissions;
determining that an applicable HARQ feedback timing for a received second set of downlink data transmission has not been provided, the second set of downlink data transmission being scheduled by a further downlink control signal indicating an inapplicable HARQ feedback timing for the second set of downlink data transmissions, the second set of downlink data transmissions being received prior to the one or more of the first set of downlink data transmissions;
in response to the determination, determining a HARQ feedback timing for the one or more of the first set of downlink data transmissions based on a second downlink control signal indicating an applicable HARQ feedback timing received after reception of the one or more of the first set of downlink data transmissions; and
transmitting, by the user equipment, at least one HARQ feedback associated with the one or more of the first set of downlink data transmissions for a predetermined threshold number of downlink data transmissions together with HARQ feedback for the second set of downlink data transmissions and HARQ feedback for a third downlink data transmission scheduled by the second downlink control signal.