Rach timeline incorporating bandwidth part switch to receive a synchronization signal block

An apparatus for wireless communications by a network entity, comprising:

• a memory and at least one processor coupled to the memory, the memory and the at least one processor being configured to:
• determine one or more parameters to allow a user equipment (UE) to switch, during a random access channel (RACH) procedure, from a second bandwidth part (BWP) to a first BWP to monitor for synchronization signal blocks (SSBs);
• and
• transmit signaling, to the UE, configuring the UE with the one or more parameters.

A method for wireless communications by a user equipment (UE), comprising:

• detecting at least a first synchronization signal block (SSB) transmitted in a first bandwidth part (BWP);
• transmitting, in a second BWP, a number of first messages as part of a random access channel (RACH) procedure;
• monitoring, in the second BWP, for a second message sent in response to the number of first messages;
• and
• switching back to the first BWP to monitor for SSBs, if the second message is not received within a first timeline after transmitting the number of first messages and one or more conditions are met.