Frequency domain resource allocation for frequency division multiplexing schemes with single downlink control information associated with multiple transmission configuration indication states

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
• receive a downlink control information (DCI) message that includes a frequency domain resource allocation field to indicate allocated resource blocks (RBs) across multiple transmission configuration indication (TCI) states;
• identify, based at least in part on one or more of the DCI message or a radio resource control configuration, at least one parameter that indicates a unit of contiguous RBs over which a same precoding is used,
• wherein the at least one parameter includes one or more of a precoding RB group (PRG) size or a physical RB (PRB) bundle size;
• and
• assign the allocated RBs to individual TCI states among the multiple TCI states based at least in part on the at least one parameter that indicates the unit of contiguous RBs over which the same precoding is used,
• wherein the allocated RBs include allocated PRGs that are assigned to the individual TCI states according to a scheme that is determined based at least in part on one or more of a dynamic indicator included in the DCI message or the RRC configuration when the unit of contiguous RBs over which the same precoding is used is determined to be a value other than wideband, and
• wherein a first set of PRGs or PRBs are assigned to a first TCI state and a second set of PRGs or PRBs are assigned to a second TCI state.

A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

• one or more instructions that, when executed by one or more processors of a user equipment, cause the one or more processors to:
• receive a downlink control information (DCI) message that includes a frequency domain resource allocation field to indicate allocated resource blocks (RBs) across multiple transmission configuration indication (TCI) states;
• identify, based at least in part on one or more of the DCI message or a radio resource control configuration, at least one parameter that indicates a unit of contiguous RBs over which a same precoding is used,
• wherein the at least one parameter includes one or more of a precoding RB group (PRG) size or a physical RB (PRB) bundle size;
• and assign the allocated RBs to individual TCI states among the multiple TCI states based at least in part on the at least one parameter that indicates the unit of contiguous RBs over which the same precoding is used,
• wherein the allocated RBs include allocated PRGs that are assigned to the individual TCI states according to a scheme that is determined based at least in part on one or more of a dynamic indicator included in the DCI message or the RRC configuration when the unit of contiguous RBs over which the same precoding is used is determined to be a value other than wideband, and
• wherein a first set of PRGs or PRBs are assigned to a first TCI state and a second set of PRGs or PRBs are assigned to a second TCI state.

An apparatus for wireless communication, comprising:

• means for receiving a downlink control information (DCI) message that includes a frequency domain resource allocation field to indicate allocated resource blocks (RBs) across multiple transmission configuration indication (TCI) states;
• means for identifying, based at least in part on one or more of the DCI message or a radio resource control configuration, at least one parameter that indicates a unit of contiguous RBs over which a same precoding is used, wherein the at least one parameter includes one or more of a precoding RB group (PRG) size or a physical RB (PRB) bundle size;
• and
• means for assigning the allocated RBs to individual TCI states among the multiple TCI states based at least in part on the at least one parameter that indicates the unit of contiguous RBs over which the same precoding is used,
• wherein the allocated RBs include allocated PRGs that are assigned to the individual TCI states according to a scheme that is determined based at least in part on one or more of a dynamic indicator included in the DCI message or the RRC configuration when the unit of contiguous RBs over which the same precoding is used is determined to be a value other than wideband, and
• wherein a first set of PRGs or PRBs are assigned to a first TCI state and a second set of PRGs or PRBs are assigned to a second TCI state.