Indexing of random access occasions for channel state information reference signal based random access procedures

A method for wireless communications at an access network entity, comprising:

• transmitting, to a UE, a configuration message comprising an indication of one or more channel state information reference signal resources for the UE, and one or more random access occasion indices for the UE, and a configuration of synchronization signal blocks (SSBs);
• identifying one or more random access occasions associated with the UE based at least in part on the one or more channel state information reference signal resources for the UE, the one or more random access occasion indices for the UE, and a random access occasion index reset time, wherein a ratio between the random access occasion index reset time and an SSB random access association period is equal to a ratio between a quantity of actually transmitted SSBs and a quantity of the one or more channel state information reference signal resources;
• and
• performing a random access procedure with the UE according to the identified one or more random access occasions.

An apparatus for wireless communications at a user equipment (UE), comprising:

• a processor, memory in electronic communication with the processor;
• and instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive, from an access network entity, a configuration message comprising an indication of one or more channel state information reference signal resources, and one or more random access occasion indices for the UE, and a configuration of synchronization signal blocks (SSBs);
• identify one or more random access occasions associated with the UE based at least in part on the one or more channel state information reference signal resources, the one or more random access occasion indices for the UE, and a random access occasion index reset time, wherein a ratio between the random access occasion index reset time and an SSB random access association period is equal to a ratio between a quantity of actually transmitted SSBs and a quantity of the one or more channel state information reference signal resources;
• and
• perform a random access procedure with the access network entity according to the identified one or more random access occasions.

An apparatus for wireless communications at an access network entity, comprising:

• a processor, memory in electronic communication with the processor;
• and instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit, to a UE, a configuration message comprising an indication of one or more channel state information reference signal resources for the UE, and one or more random access occasion indices for the UE, and a configuration of synchronization signal blocks (SSBs);
• identify one or more random access occasions associated with the UE based at least in part on the one or more channel state information reference signal resources for the UE, the one or more random access occasion indices for the UE, and a random access occasion index reset time, wherein a ratio between the random access occasion index reset time and an SSB random access association period is equal to a ratio between a quantity of actually transmitted SSBs and a quantity of the one or more channel state information reference signal resources;
• and
• perform a random access procedure with the UE according to the identified one or more random access occasions.