Beam-specific timing advance groups

A method for wireless communication at a first wireless node, comprising:

• identifying a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between a second wireless node and at least one of the first wireless node or a third wireless node;
• identifying a common timing reference value for the set of beams of the identified beam TAG;
• and
• transmitting a timing advance (TA) command for the beam TAG based at least in part on the common timing reference value.

An apparatus for wireless communication at a first wireless node, comprising:

• means for receiving, from a second wireless node, a timing advance (TA) command for a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between the first wireless node and at least one of the second wireless node or a third wireless node;
• means for identifying a common timing reference value for the beam TAG;
• means for determining a TA value for the beam TAG based at least in part on the TA command;
• and
• means for adjusting a communication timing for one or more of the set of beams based at least in part on the identified common timing reference value and the determined TA value.

An apparatus for wireless communication at a first wireless node, comprising:

• means for identifying a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between a second wireless node and at least one of the first wireless node or a third wireless node;
• means for identifying a common timing reference value for the set of beams of the identified beam TAG;
• and
• means for transmitting a timing advance (TA) command for the beam TAG based at least in part on the common timing reference value.

An apparatus for wireless communication at a first wireless node, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive, from a second wireless node, a timing advance (TA) command for a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between the first wireless node and at least one of the second wireless node or a third wireless node;
• identify a common timing reference value for the beam TAG;
• determine a TA value for the beam TAG based at least in part on the TA command;
• and
• adjust a communication timing for one or more of the set of beams based at least in part on the identified common timing reference value and the determined TA value.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between a second wireless node and at least one of the first wireless node or a third wireless node;
• identify a common timing reference value for the set of beams of the identified beam TAG;
• and
• transmit a timing advance (TA) command for the beam TAG based at least in part on the common timing reference value.

A non-transitory computer-readable medium storing code for wireless communication at a first wireless node, the code comprising instructions executable by a processor to:

• receive, from a second wireless node, a timing advance (TA) command for a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between the first wireless node and at least one of the second wireless node or a third wireless node;
• identify a common timing reference value for the beam TAG;
• determine a TA value for the beam TAG based at least in part on the TA command;
• and
• adjust a communication timing for one or more of the set of beams based at least in part on the identified common timing reference value and the determined TA value.

A non-transitory computer-readable medium storing code for wireless communication at a first wireless node, the code comprising instructions executable by a processor to:

• identify a beam timing advance group (TAG) comprising a set of beams, the set of beams used for communications between a second wireless node and at least one of the first wireless node or a third wireless node;
• identify a common timing reference value for the set of beams of the identified beam TAG;
• and
• transmit a timing advance (TA) command for the beam TAG based at least in part on the common timing reference value.