Aspects of the present application provide for flexibility in configuring channel access occasions for uplink transmissions within a configured grant transmission resource duration. The uplink transmission may be transmitted in the physical uplink shared channel (PUSCH). The configured grant transmission resource duration includes multiple orthogonal frequency division multiplexed (OFDM) symbols. In some implementations, resources for uplink transmissions are allocated such that an integer number of equally sized mini-slots, each of which is considered a separate PUSCH, fit within the slot. This occurs when the number of OFDM symbols within the slot is evenly divisible by the number of OFDM symbols in the mini-slot. In some embodiments, not all of the mini-slots in the slot are equal in size. This occurs when the number of OFDM symbols within the slot is not evenly divisible by a particular mini-slot size.