Techniques for spatial relation indication based on beam orientation

An apparatus corresponding to a first node for wireless communication, comprising:

• a transceiver;
• a memory configured to store instructions;
• and
• at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to:
• determine, at the first node, first beam orientation information for a second node to select one or more beams for beam training with a third node;
• determine, at the first node, second beam orientation information for the third node to select one or more of beams for beam training with the second node, wherein the first beam orientation information includes a first beam shape and the second beam orientation information includes a second beam shape;
• identify the first beam shape based at least on one of a pathloss or interference consideration for the second node, wherein the first beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• identify the second beam shape based at least on one of a pathloss or interference consideration for the third node, wherein the second beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• transmit, to the second node, the first beam orientation information;
• and
• transmit, to the third node, the second beam orientation information.

An apparatus corresponding to a first node for wireless communication, comprising:

• means for determining, at the first node, first beam orientation information for a second node to select one or more beams for beam training with a third node;
• means for determining, at the first node, second beam orientation information for the third node to select one or more of beams for beam training with the second node, wherein the first beam orientation information includes a first beam shape and the second beam orientation information includes a second beam shape;
• means for identifying the first beam shape based at least on one of a pathloss or interference consideration for the second node, wherein the first beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• means for identifying the second beam shape based at least on one of a pathloss or interference consideration for the third node, wherein the second beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• means for transmitting, to the second node, the first beam orientation information;
• and
• means for transmitting, to the third node, the second beam orientation information.

A non-transitory computer-readable medium storing computer code executable by a processor of a first node for wireless communications comprising code for:

• determining, at the first node, first beam orientation information for a second node to select one or more beams for beam training with a third node;
• determining, at the first node, second beam orientation information for the third node to select one or more of beams for beam training with the second node, wherein the first beam orientation information includes a first beam shape and the second beam orientation information includes a second beam shape:
• identifying the beam first shape based at least on one of a pathloss or interference consideration for the second node, wherein the first beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• identifying the second beam shape based at least on one of a pathloss or interference consideration for the third node, wherein the second beam shape corresponds to a beam width or beam shape information including side-lobe suppression or beam gain over a defined sphere direction;
• transmitting, to the second node, the first beam orientation information;
• and
• transmitting, to the third node, the second beam orientation information.