Techniques for selecting random access preambles and payload formats in wireless communications

A method for wireless communication, comprising:

• receiving a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• receiving, over a random access occasion, a random access preamble, selected from the random access preambles, and, over a corresponding payload resource unit, an associated payload;
• determining, based at least in part on at least one of the association rules in the configuration and the random access preamble, a PUSCH occasion format associated with the random access preamble and the corresponding payload resource unit;
• and
• processing the associated payload based on at least one of the PUSCH occasion format or the corresponding payload resource unit for the associated payload.

An apparatus for wireless communication, comprising:

• a transceiver;
• a memory configured to store instructions;
• and
• one or more processors coupled with the transceiver and the memory, wherein the instructions are executable by the one or more processors to cause the apparatus to:
• receive a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• select, as part of a random access procedure, a random access preamble from the random access preambles for transmitting over a random access occasion;
• determine, based at least in part on at least one of the association rules in the configuration, a PUSCH occasion format associated with the random access preamble and a corresponding payload resource unit;
• and
• transmit the random access preamble over the random access occasion and, according to the PUSCH occasion format, an associated payload over the corresponding payload resource unit.

An apparatus for wireless communication, comprising:

• a transceiver;
• a memory configured to store instructions;
• and
• one or more processors coupled with the transceiver and the memory, wherein the instructions are executable by the one or more processors to cause the apparatus to:
• receive a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• receive, over a random access occasion, a random access preamble, selected from the random access preambles, and, over a corresponding payload resource unit, an associated payload;
• determine, based at least in part on at least one of the association rules in the configuration and the random access preamble, a PUSCH occasion format associated with the random access preamble and the corresponding payload resource unit;
• and
• process the associated payload based on at least one of the PUSCH occasion format or the corresponding payload resource unit for the associated payload.

An apparatus for wireless communication, comprising:

• means for receiving a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• means for selecting, as part of a random access procedure, a random access preamble from the random access preambles for transmitting over a random access occasion;
• means for determining, based at least in part on at least one of the association rules in the configuration, a PUSCH occasion format associated with the random access preamble and a corresponding payload resource unit;
• and
• means for transmitting the random access preamble over the random access occasion and, according to the PUSCH occasion format, an associated payload over the corresponding payload resource unit.

An apparatus for wireless communication, comprising:

• means for receiving a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• means for receiving, over a random access occasion, a random access preamble, selected from the random access preambles, and, over a corresponding payload resource unit, an associated payload;
• means for determining, based at least in part on at least one of the association rules in the configuration and the random access preamble, a PUSCH occasion format associated with the random access preamble and the corresponding payload resource unit;
• and
• means for processing the associated payload based on at least one of the PUSCH occasion format or the corresponding payload resource unit for the associated payload.

A computer-readable medium, comprising code executable by one or more processors for wireless communications, the code comprising code for:

• receiving a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• selecting, as part of a random access procedure, a random access preamble from the random access preambles for transmitting over a random access occasion;
• determining, based at least in part on at least one of the association rules in the configuration, a PUSCH occasion format associated with the random access preamble and a corresponding payload resource unit;
• and
• transmitting the random access preamble over the random access occasion and, according to the PUSCH occasion format, an associated payload over the corresponding payload resource unit.

A computer-readable medium, comprising code executable by one or more processors for wireless communications, the code comprising code for:

• receiving a configuration indicating multiple association rules associating random access preambles and physical uplink shared channel (PUSCH) occasion formats;
• receiving, over a random access occasion, a random access preamble, selected from the random access preambles, and, over a corresponding payload resource unit, an associated payload;
• determining, based at least in part on at least one of the association rules in the configuration and the random access preamble, a PUSCH occasion format associated with the random access preamble and the corresponding payload resource unit;
• and
• processing the associated payload based on at least one of the PUSCH occasion format or the corresponding payload resource unit for the associated payload.