Methods and apparatus related to link establishment in a wireless backhaul network

A first access node (AN), comprising:

• means for determining a synchronization schedule of at least one second AN based on received synchronization information regarding the synchronization schedule of the at least one second AN, the synchronization schedule of the at least one second AN indicating a pattern of synchronization operations associated with a first set of synchronization signal (SS) burst sets and a second set of SS burst sets, the first set of SS burst sets associated with facilitating synchronization with one or more user equipment (UEs) and the second set of SS burst sets associated with facilitating synchronization with one or more neighboring ANs,
• wherein the first set of SS burst sets is associated with a first transmission configuration including at least one of a first set of beams, first constituent signals, and a first bandwidth allocation, and
• the second set of SS burst sets is associated with a second transmission configuration including at least one of a second set of beams, second constituent signals, and a second bandwidth allocation,
• the second transmission configuration being different from the first transmission configuration based on at least one of
• the second set of beams comprising different beams than the first set of beams,
• the second constituent signals comprising different signals than the first constituent signals, and
• the second bandwidth allocation comprising a wider bandwidth allocation than the first bandwidth allocation;
• and
• means for transmitting the synchronization information regarding the synchronization schedule of the at least one second AN to at least one of the one or more neighboring ANs or the one or more UEs.

A first access node (AN) for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• determine a synchronization schedule of at least one second AN based on received synchronization information regarding the synchronization schedule of the at least one second AN, the synchronization schedule of the at least one second AN indicating a pattern of synchronization operations associated with a first set of synchronization signal (SS) burst sets and a second set of SS burst sets, the first set of SS burst sets associated with facilitating synchronization with one or more user equipment (UEs) and the second set of SS burst sets associated with facilitating synchronization with one or more neighboring ANs,
• wherein the first set of SS burst sets is associated with a first transmission configuration including at least one of a first set of beams, first constituent signals, and a first bandwidth allocation, and
• the second set of SS burst sets is associated with a second transmission configuration including at least one of a second set of beams, second constituent signals, and a second bandwidth allocation,
• the second transmission configuration being different from the first transmission configuration based on at least one of
• the second set of beams comprising different beams than the first set of beams,
• the second constituent signals comprising different signals than the first constituent signals, and
• the second bandwidth allocation comprising a wider bandwidth allocation than the first bandwidth allocation;
• and
• transmit the synchronization information regarding the synchronization schedule of the at least one second AN to at least one of the one or more neighboring ANs or the one or more UEs.

A method of wireless communication at an access node, wherein the access node is a member of a first access node group of a network of access nodes, the method comprising:

• during a first set of synchronization resources, transmitting synchronization signals for downlink synchronization;
• and
• during a second different set of synchronization resources, performing access node backhaul synchronization as part of the first access node group, wherein performing the access node backhaul synchronization as part of the first access node group comprises:
• at a first time interval, receiving first signals from one or more access nodes included in a second different access node group of the network of access nodes;
• using the first signals from the one or more access nodes included in the second different access node group to update synchronization of the access node with the one or more access nodes of the network of access nodes;
• and
• at a second time interval, transmitting second signals to access nodes included in at least the second different access node group, the second signals including synchronization information,
• wherein transmitting the synchronization signals for the downlink synchronization is based on a first transmission configuration including at least one of a first set of beams, first constituent signals, and a first bandwidth allocation, and
• transmitting the second signals to the access nodes is based on a second transmission configuration including at least one of a second set of beams, second constituent signals, and a second bandwidth allocation,
• the second transmission configuration being different from the first transmission configuration based on at least one of
• the second set of beams comprising different beams than the first set of beams,
• the second constituent signals comprising different signals than the first constituent signals, and
• the second bandwidth allocation comprising a wider bandwidth allocation than the first bandwidth allocation.