US 12,113,599 B2
Apparatus and method for beam failure recovery
Li Guo, Allen, TX (US)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Nov. 11, 2021, as Appl. No. 17/524,621.
Application 17/524,621 is a continuation of application No. PCT/CN2019/122757, filed on Dec. 3, 2019.
Claims priority of provisional application 62/886,043, filed on Aug. 13, 2019.
Prior Publication US 2022/0200687 A1, Jun. 23, 2022
Int. Cl. H04B 7/06 (2006.01); H04W 72/044 (2023.01); H04W 72/21 (2023.01); H04W 74/0833 (2024.01); H04W 76/19 (2018.01)
CPC H04B 7/0695 (2013.01) [H04W 72/046 (2013.01); H04W 72/21 (2023.01); H04W 74/0833 (2013.01); H04W 76/19 (2018.02)] 18 Claims
OG exemplary drawing
 
10. An apparatus for beam failure recovery, comprising:
a transceiver configured for receiving reference signals (RSs); and
a processor configured for detecting a first set of beam failure detection RSs associated with a first control resource set (CORESET) group identifier (ID);
wherein the processor measures the first set of beam failure detection RSs to detect a first beam failure event associated with the first CORESET group ID;
wherein the processor transmits a first beam failure recovery request message associated with the first CORESET group ID when the first beam failure event is detected;
wherein the processor monitors a search space for a first beam failure recovery response which responds to the first beam failure recovery request, and
wherein the processor further selects a RS from a first set of new beam identification RSs associated with the first CORESET group ID, of which link quality is measured as greater than a first threshold, and the processor transmits a random access channel (RACH) preamble associated with the RS selected from the first set of new beam identification RSs for a beam failure recovery process associated with the first CORESET group ID, wherein the RACH preamble comprises the first beam failure recovery request.