Rach considerations under beam based ssb power for network energy saving

A method of wireless communication performable at a user equipment (UE), comprising:

• obtaining a configuration including one or more beam-specific random access channel (RACH) parameters, the one or more beam-specific RACH parameters including at least one of:
• a plurality of synchronization signal block (SSB) reference signal received power (RSRP) thresholds for selection of a single SSB for four-step random access,
• a two-step RACH parameter indicating whether two-step random access is enabled in association with a specific SSB,
• a two-step RACH threshold for selection of an SSB for two-step random access or for selection between two-step random access and four-step random access,
• a physical uplink shared channel (PUSCH) RSRP threshold for PUSCH transmission repetitions in four-step random access,
• a supplementary uplink (SUL) RSRP threshold for selection between a normal uplink (NUL) carrier and a SUL carrier for random access, or a channel state information reference signal (CSI-RS) RSRP threshold for selection of a CSI-RS for four-step random access;
• obtaining a downlink reference signal from a network entity;
• and
• sending to the network entity a RACH message associated with the downlink reference signal based on the one or more beam-specific RACH parameters.

An apparatus for wireless communication, comprising:

• one or more memories;
• and
• one or more processors each communicatively coupled with at least one of the one or more memories, the one or more processors, individually or in any combination, operable to cause the apparatus to:
• send a configuration including one or more beam-specific random access channel (RACH) parameters, the one or more beam-specific RACH parameters including at least one of:
• a plurality of synchronization signal block (SSB) reference signal received power (RSRP) thresholds for selection of a single SSB for four-step random access,
• a two-step RACH parameter indicating whether two-step random access is enabled in association with a specific SSB,
• a two-step RACH threshold for selection of an SSB for two-step random access or for selection between two-step random access and four-step random access,
• a physical uplink shared channel (PUSCH) RSRP threshold for PUSCH transmission repetitions in four-step random access,
• a supplementary uplink (SUL) RSRP threshold for selection between a normal uplink (NUL) carrier and a SUL carrier for random access, or
• a channel state information reference signal (CSI-RS) RSRP threshold for selection of a CSI-RS for four-step random access;
• send a downlink reference signal to a user equipment (UE);
• and
• obtain from the UE a RACH message associated with the downlink reference signal based on the one or more beam-specific RACH parameters.

A method of wireless communication performable at a network entity, comprising:

• sending a configuration including one or more beam-specific random access channel (RACH) parameters, the one or more beam-specific RACH parameters including at least one of:
• a plurality of synchronization signal block (SSB) reference signal received power (RSRP) thresholds for selection of a single SSB for four-step random access,
• a two-step RACH parameter indicating whether two-step random access is enabled in association with a specific SSB,
• a two-step RACH threshold for selection of an SSB for two-step random access or for selection between two-step random access and four-step random access,
• a physical uplink shared channel (PUSCH) RSRP threshold for PUSCH transmission repetitions in four-step random access,
• a supplementary uplink (SUL) RSRP threshold for selection between a normal uplink (NUL) carrier and a SUL carrier for random access, or
• a channel state information reference signal (CSI-RS) RSRP threshold for selection of a CSI-RS for four-step random access;
• sending a downlink reference signal to a user equipment (UE);
• and
• obtaining from the UE a RACH message associated with the downlink reference signal based on the one or more beam-specific RACH parameters.