Unified joint sounding procedure for coordinated beamforming

An apparatus for wireless communication, comprising:

• at least one memory comprising instructions;
• and
• one or more processors configured to execute the instructions and cause the apparatus to:
• output a joint packet in coordination with a second wireless node, wherein the apparatus is associated with a first basic service set (BSS) and the second wireless node and a third wireless node are associated with a second BSS and the joint packet has at least one training field with one or more first spatial streams from the apparatus and one or more second spatial streams from the second wireless node;
• and
• obtain channel feedback, after outputting the joint packet, for a first channel between the apparatus and the third wireless node.

An apparatus for wireless communication, comprising:

• at least one memory comprising instructions;
• and
• one or more processors configured to execute the instructions and cause the apparatus to:
• obtain first and second packets sequentially from a first wireless node and a second wireless node, respectively, wherein the first wireless node is associated with a first basic service set (BSS) and the apparatus and second wireless node are associated with a second BSS;
• generate and provide channel feedback, based on the first packet, for a first channel between the first wireless node and the apparatus as part of a first sounding procedure;
• and
• generate and provide channel feedback, based on the second packet, for a second channel between the first wireless node and the apparatus as part of a second sounding procedure, wherein the first sounding procedure and second sounding procedure occur at different rates.

An apparatus for wireless communication, comprising:

• at least one memory comprising instructions;
• and
• one or more processors configured to execute the instructions and cause the apparatus to:
• output a first packet as part of a first channel sounding procedure involving the apparatus and a first wireless node, wherein the apparatus is associated with a first basic service set (BSS) and the first wireless node is associated with a second BSS;
• obtain channel feedback, after outputting the first packet, for a first channel between the apparatus and the first wireless node;
• output a second packet as part of a second channel sounding procedure involving the apparatus and a second wireless node, wherein the second wireless is associated with the first BSS;
• and
• obtain channel feedback, after outputting the second packet, for a second channel between the apparatus and the second wireless node.