Spatial reuse for wireless communications

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including instructions,
• wherein the at least one memory and the instructions are configured, with the at least one processor, to cause the apparatus to:
• receive, by a first transceiver of a first radio access technology and from a second device, wherein the apparatus comprises the first transceiver, a calibration start message to start a calibration process for a second radio access technology,
• based on receiving the calibration start message on the first transceiver of the first radio access technology, receive, by a second transceiver configured to operate according to the second radio access technology, wherein the apparatus comprises the second transceiver, a calibration message from the second device, wherein the first and second radio access technologies are different,
• generate channel state information for the second transceiver on the basis of the received calibration message, and
• transmit, by the first transceiver, the channel state information to the second device for performing null steering by the second device toward the apparatus.

A method performed by a first device, comprising:

• transmitting, by a first transceiver configured to operate according to a first radio access technology, wherein the first device comprises the first transceiver, a calibration start message to a second device to start a calibration process for a second radio access technology by the second device,
• transmitting a calibration message by a second transceiver, configured to operate according to the second radio access technology, to the second device, wherein the first device comprises the second transceiver, wherein the first and second radio access technologies are different,
• receiving channel state information for the second transceiver, the receiving by the first transceiver from the second device, wherein the channel state information is based on reception of the calibration message,
• determine at least one coefficient for null steering towards the second device based on the channel state information;
• and
• perform null steering for transmissions by the second transceiver towards the second device based on the at least one coefficient.