US 12,144,048 B2
Secondary cell link recovery request transmission
Yushu Zhang, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haijing Hu, Los Gatos, CA (US); Haitong Sun, Cupertino, CA (US); Hong He, Cupertino, CA (US); Wei Zeng, Saratoga, CA (US); Yakun Sun, San Jose, CA (US); and Yuchul Kim, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jul. 29, 2022, as Appl. No. 17/877,601.
Application 17/877,601 is a continuation of application No. 16/931,254, filed on Jul. 16, 2020, granted, now 11,445,563.
Claims priority of application No. 201910920468.5 (CN), filed on Sep. 27, 2019.
Prior Publication US 2022/0386405 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/19 (2018.01); H04W 8/24 (2009.01); H04W 72/1268 (2023.01); H04W 72/23 (2023.01); H04W 74/0833 (2024.01); H04W 76/18 (2018.01)
CPC H04W 76/18 (2018.02) [H04W 8/24 (2013.01); H04W 72/1268 (2013.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01); H04W 76/19 (2018.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a processor configured to cause a base station of a cellular network to:
establish a connection with a user equipment (UE), wherein the connection includes:
a link with a primary cell (PCell); and
a link with a secondary cell (SCell);
transmit, to the UE, configuration for a first opportunity for transmission of a link recovery message on a physical uplink control channel (PUCCH); and
receive, from the UE on a physical uplink shared channel (PUSCH), an indication of a failure of the link with the SCell, wherein the indication is received on the PUSCH prior to a start of the first opportunity for transmission of the link recovery message on the PUCCH, wherein the indication is received using a medium access control (MAC) control element (MAC CE).