This disclosure describes systems, methods, and devices related to enhanced channel access for wireless communications. A device may determine a first transmission opportunity (TXOP) for a first time period, wherein the first time period is allocated to the device for transmission of one or more frames to a first device on a channel. The device may determine an extended TXOP for a second time period, wherein the extended TXOP is allocated to the device after a time gap from the first TXOP. The device may perform an enhanced distributed channel access (EDCA) operation before accessing the channel. The device may cause to send a first frame of the one or more frames on the channel during the first TXOP.