Multiplexing reference signals with sidelink synchronization signal block

An apparatus for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory, the memory including instructions executable by the at least one processor to cause the apparatus to:
• in a slot of a sidelink (SL) communication frame of a user equipment (UE), the slot configured with a resource element allocation comprising an SL synchronization signal block (S-SSB) occupying a plurality of less than all symbols of the slot, and a plurality of less than all subcarriers of a channel of the slot:
• determine, by the UE, that an occupied channel bandwidth (OCB) constraint for the slot across the channel will not be met with the resource element allocation;
• multiplex, by the UE and in response to the determining, a reference signal (RS) across the symbols occupied by the S-SSB in a plurality of resource blocks of the channel not occupied by the S-SSB to meet the OCB constraint;
• and
• transmit, by the UE, the slot with the S-SSB and the multiplexed RS.

A non-transitory computer-readable medium storing processor-executable code, the code when read and executed by at least one processor of user equipment (UE), causes the UE to:

• in a slot of a sidelink (SL) communication frame of the UE, the slot configured with a resource element allocation comprising an SL synchronization signal block (S-SSB) occupying a plurality of less than all symbols of the slot, and a plurality of less than all subcarriers of a channel of the slot:
• determine, by the UE, that an occupied channel bandwidth (OCB) constraint for the slot across the channel will not be met with the resource element allocation;
• multiplex, by the UE and in response to the determining, a reference signal (RS) across the symbols occupied by the S-SSB in a plurality of resource blocks of the channel not occupied by the S-SSB to meet the OCB constraint;
• and
• transmit, by the UE, the slot with the S-SSB and the multiplexed RS.

An apparatus for wireless communications, comprising:

• in a slot of a sidelink (SL) communication frame of a user equipment (UE), the slot configured with a resource element allocation comprising an SL synchronization signal block (S-SSB) occupying a plurality of less than all symbols of the slot, and a plurality of less than all subcarriers of a channel of the slot:
• means for determining, by the apparatus, that an occupied channel bandwidth (OCB) constraint for the slot across the channel will not be met with the resource element allocation;
• means for multiplexing, by the apparatus and in response to the determining, a reference signal (RS) across the symbols occupied by the S-SSB in a plurality of resource blocks of the channel not occupied by the S-SSB to meet the OCB constraint;
• and
• means for transmitting, by the apparatus, the slot with the S-SSB and the multiplexed RS.