CPC H04L 41/0654 (2013.01) [H04B 7/0695 (2013.01); H04B 7/088 (2013.01); H04L 5/0048 (2013.01); H04W 56/001 (2013.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01)] | 18 Claims |
1. A method implemented in a wireless transmit receive unit (WTRU), the method comprising:
determining that a beam failure condition has occurred,
wherein the determining that the beam failure condition has occurred comprises monitoring at least one of a channel state information-reference signal (CSI-RS) or a synchronization signal block (SSB) to assess whether the beam failure condition has occurred;
identifying a candidate beam for resolving the beam failure condition;
transmitting a beam failure recovery request to a network entity using a Physical Random Access Channel (PRACH) resource or a Physical Uplink Control Channel (PUCCH) resource,
wherein the beam failure recovery request indicates the candidate beam identified by the WTRU; and
receiving a response associated with the beam failure recovery request from the network entity.
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