US 11,943,058 B2
Methods of retransmission in semi-persistent scheduling without explicit HARQ feedback
Zhenhua Zou, Solna (SE); Ali Behravan, Stockholm (SE); Daniel Chen Larsson, Lund (SE); and Gustav Wikström, Täby (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Nov. 11, 2022, as Appl. No. 17/985,749.
Application 17/985,749 is a continuation of application No. 16/481,522, granted, now 11,502,784, previously published as PCT/IB2018/050741, filed on Feb. 6, 2018.
Claims priority of provisional application 62/476,641, filed on Mar. 24, 2017.
Prior Publication US 2023/0074024 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/1812 (2023.01); H04L 1/1607 (2023.01); H04L 1/1829 (2023.01); H04L 1/1867 (2023.01)
CPC H04L 1/1812 (2013.01) [H04L 1/1657 (2013.01); H04L 1/1864 (2013.01); H04L 1/188 (2013.01); H04L 1/1896 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for managing transport block (TB) transmissions by the wireless device to a network node at periodic transmission occasions, the method comprising:
starting a retransmission timer for a hybrid automatic repeat request (HARQ) process upon a first transport block (TB) transmission by the wireless device to the network node;
applying a HARQ policy for the HARQ process, the HARQ policy governing whether the wireless device is to retransmit the first TB or transmit a second TB where no HARQ feedback responsive to the first TB transmission is received from the network node before the retransmission timer expires; and
retransmitting the first TB or transmitting the second TB according to the HARQ policy at a next periodic transmission occasion for the HARQ process after the retransmission timer expires, wherein the HARQ process is one of a plurality of concurrent HARQ processes.