US 11,870,592 B2
Trigger retransmission of a feedback in unlicensed spectrum
Zhifei Fan, San Diego, CA (US); Tao Luo, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Arumugam Chendamarai Kannan, San Diego, CA (US); Jing Sun, San Diego, CA (US); Makesh Pravin John Wilson, San Diego, CA (US); Yan Zhou, San Diego, CA (US); and Wooseok Nam, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 16, 2022, as Appl. No. 17/663,648.
Application 17/663,648 is a continuation of application No. 16/737,258, filed on Jan. 8, 2020, granted, now 11,362,770.
Claims priority of provisional application 62/792,718, filed on Jan. 15, 2019.
Prior Publication US 2022/0278780 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 1/1829 (2023.01); H04W 74/08 (2009.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01)
CPC H04L 1/1854 (2013.01) [H04L 1/1861 (2013.01); H04L 5/0055 (2013.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 74/0808 (2013.01); H04L 5/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a memory;
a transceiver; and
at least one processor coupled to the memory and the transceiver, wherein the apparatus is configured to:
communicate, with a second wireless communication device, a downlink control information (DCI) message that schedules a first communication signal and includes a second grant for transmitting a first feedback associated with the first communication signal;
communicate, with the second wireless communication device, a first grant for transmitting the first feedback associated with the first communication signal, the second grant being communicated before the first grant for transmitting the first feedback, wherein the first grant comprises a physical uplink control channel (PUCCH) trigger and the first grant does not schedule a physical downlink shared channel (PDSCH) communication; and
communicate, with the second wireless communication device, the first feedback based on the first grant.