A communication circuit for use in a transmitting device, comprising: a node configured to couple to an antenna; and an interface circuit comprising: a first radio circuit configured to transmit one or more packets over a first physical layer communication protocol; and a second radio circuit, which is separate from the first radio circuit, configured to transmit and receive one or more packets over a second physical layer communication protocol that is different from the first physical layer communication protocol; wherein the interface circuit is configured to: transmit, via the first radio circuit, a data packet to the receiving device in a first band of frequencies using the first physical layer communication protocol; transmit, via the second radio circuit, another data packet to the receiving device in a second band of frequencies using the second physical layer communication protocol; and receive, via the second radio circuit, feedback from the receiving device about the communication of the data packet, wherein the feedback is received in the second band of frequencies using the second physical layer communication protocol, wherein the transmitting of the data packet in the first band of frequencies is synchronized with the transmitting of the other data packet in the second band of frequencies so that the data packet is transmitted when transmitting in the second band of frequencies is enabled. a node configured to couple to an antenna; and an interface circuit comprising: a first radio circuit configured to transmit one or more packets over a first physical layer communication protocol; and a second radio circuit, which is separate from the first radio circuit, configured to transmit and receive one or more packets over a second physical layer communication protocol that is different from the first physical layer communication protocol; a first radio circuit configured to transmit one or more packets over a first physical layer communication protocol; and a second radio circuit, which is separate from the first radio circuit, configured to transmit and receive one or more packets over a second physical layer communication protocol that is different from the first physical layer communication protocol; wherein the interface circuit is configured to: transmit, via the first radio circuit, a data packet to the receiving device in a first band of frequencies using the first physical layer communication protocol; transmit, via the second radio circuit, another data packet to the receiving device in a second band of frequencies using the second physical layer communication protocol; and receive, via the second radio circuit, feedback from the receiving device about the communication of the data packet, wherein the feedback is received in the second band of frequencies using the second physical layer communication protocol, wherein the transmitting of the data packet in the first band of frequencies is synchronized with the transmitting of the other data packet in the second band of frequencies so that the data packet is transmitted when transmitting in the second band of frequencies is enabled. transmit, via the first radio circuit, a data packet to the receiving device in a first band of frequencies using the first physical layer communication protocol; transmit, via the second radio circuit, another data packet to the receiving device in a second band of frequencies using the second physical layer communication protocol; and receive, via the second radio circuit, feedback from the receiving device about the communication of the data packet, wherein the feedback is received in the second band of frequencies using the second physical layer communication protocol, wherein the transmitting of the data packet in the first band of frequencies is synchronized with the transmitting of the other data packet in the second band of frequencies so that the data packet is transmitted when transmitting in the second band of frequencies is enabled.