Systems and methods for retransmission of contention free random access beam failure recovery (CFRA-BFR) and cross-CC beam failure detection

A user equipment (UE), comprising:

• a memory configured to store program instructions;
• and
• a processor, upon executing the program instructions, configured to:
• receive, from a network node, one or more reference signals;
• in response to determining that a beam failure occurred for the one or more reference signals,
• determine a contention-free (CF) physical random access channel (PRACH) resource for a beam failure recovery (BFR) request based on a first newly identified beam (NIB), wherein the first NIB is associated with at least one antenna port quasi-collocation parameter;
• and
• transmit a first BFR request to the network node using the determined CF PRACH resource;
• and
• monitor, for a BFR response, a first search space that is quasi-co-located with the first NIB;
• and
• responsive to detecting the BFR response via a downlink control information (DCI) associated with a physical downlink control channel (PDCCH) in the first search space, wherein the DCI has a cyclic redundancy check (CRC) scrambled by a cell radio network temporary identifier (C-RNTI) or a modulation and coding scheme C-RNTI (MCS-C-RNTI), then
• after 28 symbols from a last symbol of the PDCCH, perform POOCH monitoring in a control resource set (CORESET) with index 0 using the at least one antenna port quasi-collocation parameter.

A baseband processor, configured to:

• receive one or more reference signals;
• and
• in response to determining that a beam failure occurred for the one or ore reference signals,
• determine, based on a first newly identified beam (NIB), a contention-free (CF) physical random access channel (PRACH) resource for a first beam failure recovery (BM) request, wherein the first NIB is associated with at least one antenna port quasi-collocation parameter;
• encode, for transmission via the first NIB, the first BFR request, using the CF PRACH resource;
• monitor a first search space that is quasi-co-located with the first NIB for a BFR response;
• and
• when the BM response is detected in the first search space via a downlink control information (DCI) associated with a physical downlink control channel (PDCCH), wherein the DCI has a cyclic redundancy check (CRC) scrambled by a cell radio network temporary identifier (C-RNTI) or a modulation and coding scheme (MCS-C-RNTI), then:
• after 28 symbols from a last symbol of the PDCCH, perform PDCCH monitoring in a control resource set (CORESET) with index 0 using the at least one antenna port quasi-collocation parameter.