Beam failure recovery operation

Machine readable storage media having machine executable instructions that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node B (gNB) on a wireless network to perform an operation comprising:

• detect a beam failure event;
• generate a beam failure recovery request for transmission to the gNB, in response to the beam failure event;
• send the beam failure recovery request to a transmission circuitry;
• and
• monitor for Physical Downlink Control Channel (PDCCH) in a search space configured by the gNB, subsequent to a transmission of the beam failure recovery request.

An apparatus of a User Equipment (UE) operable to communicate with a fifth-generation Evolved Node B (gNB) on a wireless network, comprising:

• one or more processors to:
• process one or more Reference Signals (RSes) received via a first beam, wherein the one or more RSes comprise a periodic Channel State Information-Reference Signal (CSI-RS);
• estimate a block error rate (BLER) associated with the one or more RSes;
• and
• detect a failure of the first beam, based on the estimate of the BLER.