Patent ID: 11949485
Assignee: NOKIA TECHNOLOGIES OY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An apparatus comprising
at least one processor; and
at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
receive an indication of a failure of a primary cell and/or secondary cell;
in response to receiving a secondary cell beam failure recovery medium access control control element, determine a user equipment spatial receiving filter for receiving a response for a beam failure recovery on the secondary cell, wherein the medium access control control element accommodates information on several candidate beams configured to indicate a highest reported synchronization signal block index according to a network-configured candidate beam selection threshold, wherein the spatial receiving filter is configured to assume a physical downlink control channel demodulation reference signal of the secondary cell is spatially quasi co-located with at least one of a selected primary cell synchronization signal block, channel state information reference signal, or synchronization signal block of an indicated channel state information reference signal through a spatial quasi co-located assumption; and
select candidate beam measurements from the physical layer of the secondary cell.