US 12,133,101 B2
Method and apparatus for new radio unlicensed (NR-U) radio link monitoring preliminary class
Rui Huang, Beijing (CN); Qiming Li, Beijing (CN); Jie Cui, Santa Clara, CA (US); Zhibin Yu, Unterhaching (DE); Yang Tang, Santa Clara, CA (US); and Hua Li, Beijing (CN)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/599,666
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Mar. 30, 2020, PCT No. PCT/US2020/025823
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/205792, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/826,555, filed on Mar. 29, 2019.
Prior Publication US 2022/0201519 A1, Jun. 23, 2022
Int. Cl. H04W 24/08 (2009.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01); H04W 74/08 (2024.01); H04W 74/0808 (2024.01)
CPC H04W 24/08 (2013.01) [H04L 5/0048 (2013.01); H04W 24/10 (2013.01); H04W 74/0808 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
radio front end circuitry configured to receive a reference signal from a source device via a radio link, wherein the reference signal is one of a synchronization signal block (SSB) signal or a channel state information reference signal (CSI-RS); and
processor circuitry coupled to the radio front end circuitry, the processor circuitry configured to:
measure a quality of the reference signal;
measure an evaluation time of the reference signal;
determine a first indicator of the radio link based on the quality of the reference signal;
determine a second indicator of the radio link based on the evaluation time of the reference signal, wherein the first indicator is based on a block error rate (BLER) and the second indicator is based on a factor of a listen before talk (LBT) procedure;
determine a status of a connection of the radio link based on the first indicator and the second indicator of the radio link; and
generate a message based the status of the connection, wherein the radio front end circuitry is further configured to transmit the message to the source device.