at least one non-transitory memory including computer program code; the at least one non-transitory memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:

estimate, by a receiver device in a wireless network, a set of one or more active beams for the receiver device based on an estimated receive power of each active beam to obtain an estimated set of one or more active beams for the receiver device;

receive, by the receiver device, verification information associated with the estimated set of one or more active beams for the receiver device; and

verify, by the receiver device based on the verification information, the estimated set of one or more active beams for the receiver device,

wherein the processor, the at least one non-transitory memory and the computer program code being configured to estimate comprises being configured to cause the apparatus to:

estimate, by a receiver device in a wireless network, a set of one or more active beams for the receiver device based on an estimated receive power of each active beam and a beam-specific sequence for each active beam of the set of one or more active beams to obtain an estimated set of one or more active beams for the receiver device, wherein the processor, the at least one non-transitory memory and the computer program code being configured to estimate a set of one or more active beams comprises being configured to cause the apparatus to;

determine, by the receiver device based on the estimated receive power for each of the plurality of beams, an active beam bit string that identifies the estimated set of one or more active beams out of the plurality of beams;

wherein the being configured to cause the apparatus to verify comprises being configured to cause the apparatus to verify, based on the verification information and the active beam bit string, that the active beam bit string identifies a correct set of active beams out of the plurality of beams,

wherein the processor, the at least one non-transitory memory and the computer program code being configured to receive, by the receiver device, verification information comprises being configured to cause the apparatus to:

receive redundancy bits associated with the active beam bit string;

wherein the being configured to cause the apparatus to verify comprises being configured to cause the apparatus to verify, by the receiver device, the estimated set of one or more active beams for the receiver device based on the redundancy bits and the active beam bit string.