Handling Configurations in Source Integrated Access Backhaul (IAB) Donor during Temporary Topology Adaptations

A method for a source donor centralized unit (CU) in an integrated access backhaul (IAB) wireless network, the method comprising:

• determining that traffic between the source donor CU and a top-level IAB node in the wireless network needs to be offloaded to a target donor CU in the wireless network;
• and
• sending, to one or more descendant nodes of the source donor CU, a first indication that at least one configuration for traffic between the source donor CU and at least one IAB node is suspended, in association with migration of the top-level IAB node from the source donor CU to the target donor CU.

A method for an integrated access backhaul (IAB) node in a wireless network, the method comprising:

• receiving, from a source donor centralized unit (CU) in the wireless network, a first indication that at least one configuration for traffic between the source donor CU and at least one IAB node is suspended, in association with migration of a top-level IAB node from the source donor CU to a target donor CU in the wireless network;
• and
• suspending the at least one configuration in accordance with the first indication.