Receive spatial configuration indication for communication between wireless devices

A first wireless device for wireless communication, comprising:

• at least one processor;
• a transceiver communicatively coupled to the at least one processor;
• and
• a memory communicatively coupled to the at least one processor,
• wherein the at least one processor is configured to:
• configure the first device to receive, from a second device, a signal using a first receive spatial configuration of the first device that corresponds to a first transmit spatial configuration of the second device;
• determine a receive configuration indicator (RCI) to indicate the first receive spatial configuration of the first device;
• transmit the RCI to the second device;
• transmit a sidelink communication to one or more devices using a second transmit spatial configuration of the first device,
• wherein the sidelink communication includes:
• a second transmit configuration indicator (TCI) of the first device, wherein the second TCI indicates the second transmit spatial configuration of the first device, and
• a beam correspondence indication to indicate that the first device is capable of beam correspondence to form a receive beam that corresponds to a transmit beam indicated by the second TCI;
• transmit a slot indication of one or more future time slots available for the first device to communicate using a second receive spatial configuration that has a beam correspondence to the second TCI of the first device;
• and
• receive a transmission from at least one of the one or more devices on the one or more future slots using the second receive spatial configuration that corresponds to the second transmit spatial configuration indicated by the second TCI.

A method of wireless communication by a first device, comprising:

• transmitting, to a second device, a signal using a first transmit spatial configuration of the first device;
• receiving, from the second device, a receive configuration indication (RCI) to indicate a first receive spatial configuration of the second device that corresponds to the first transmit spatial configuration of the first device;
• receiving, from the second device, a slot indication of one or more future time slots available for the second device to receive from the first device using at least one of the first receive spatial configuration respectively indicated by the RCI;
• transmitting, to the second device, a communication on the one or more future slots using the first transmit spatial configuration of the first device;
• receiving, from the second device, a sidelink communication using a second receive spatial configuration of the first device,
• wherein the sidelink communication includes:
• a second transmit configuration indicator (TCI) of the second device, wherein the second TCI indicates a second transmit spatial configuration of the second device, and
• a beam correspondence indication to indicate that the second device is capable of beam correspondence to form a receive beam that corresponds to a transmit beam indicated by the second TCI;
• receiving, from the second device, a slot indication of one or more future time slots available for the second device to communicate using a second receive spatial configuration that has a beam correspondence to the second TCI of the second device;
• and
• transmitting a transmission to the second device on the one or more future slots using the second receive spatial configuration that corresponds to the second transmit spatial configuration indicated by the second TCI.

A first wireless device for wireless communication, comprising:

• at least one processor;
• a transceiver communicatively coupled to the at least one processor;
• and
• a memory communicatively coupled to the at least one processor,
• wherein the at least one processor is configured to:
• transmit, to a second device, a signal using a first transmit spatial configuration of the first device;
• receive, from the second device, a receive configuration indication (RCI) to indicate a first receive spatial configuration of the second device that corresponds to the first transmit spatial configuration of the first device;
• receive, from the second device, a slot indication of one or more future time slots available for the second device to receive from the first device using at least one of the first receive spatial configuration respectively indicated by the RCI;
• and
• transmit, to the second device, a communication on the one or more future slots using the first transmit spatial configuration of the first device;
• receive, from the second device, a sidelink communication using a second receive spatial configuration of the first device,
• wherein the sidelink communication includes:
• a second transmit configuration indicator (TCI) of the second device, wherein the second TCI indicates a second transmit spatial configuration of the second device, and
• a beam correspondence indication to indicate that the second device is capable of beam correspondence to form a receive beam that corresponds to a transmit beam indicated by the second TCI;
• receive, from the second device, a slot indication of one or more future time slots available for the second device to communicate using a second receive spatial configuration that has a beam correspondence to the second TCI of the second device;
• and
• transmit a transmission to the second device on the one or more future slots using the second receive spatial configuration that corresponds to the second transmit spatial configuration indicated by the second TCI.