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

Claim 0:
1. 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:
determine that beam failure on a secondary cell has been determined by at least at a medium access control layer;
determine one or more other secondary cell candidates based on at least candidate beam measurements of at least one serving cell;
transmit one or more data packets related to one or more determined other secondary cell candidates comprising using medium access control control element to indicate information on new secondary cell candidates, if new candidates can be indicated, 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; and
determine a spatial reception filter based on the transmitted data packets related to the determined other secondary cell candidates, wherein the spatial reception 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.