Efficient signaling of resource pattern in integrated-access and backhaul (IAB) networks

A method of wireless communications for an Integrated-Access and Backhaul (IAB)-node, comprising:

• receiving, at a distributed unit (DU) of the IAB-node, a resource pattern from a central unit (CU) of an IAB-donor node with a direct backhaul link to a core network via one or more IAB-nodes in an IAB network, the resource pattern including a base resource pattern configured with a base periodicity of two or more slots and a plurality DU slot format indices within the base periodicity, wherein the resource pattern further includes an overridden resource pattern configured to replace the base resource pattern for one or more specified slots, wherein the overridden resource pattern is configured with a scaling factor and a plurality of overridden slots including a slot index and DU slot format for each of the plurality of overridden slots, wherein the slot index corresponds to a value between 0 and a maximum value calculated based on the base periodicity and the scaling factor;
• determining a scheduling behavior based at least on the resource pattern;
• and
• communicating with one or more additional neighboring IAB-nodes of the IAB network based on the scheduling behavior associated with the resource pattern.

A network entity, comprising:

• a memory storing instructions;
• and
• a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
• determine, at a central unit (CU) of a donor node with a direct backhaul link to a core network, a configuration of a resource pattern for a plurality of Integrated-Access and Backhaul (IAB)-nodes of an IAB network, wherein the configuration of the resource pattern includes a base resource pattern configured with a base periodicity of one or more slots and a plurality of distributed unit (DU) slot format indices within the base periodicity, wherein the configuration of the resource pattern further includes one or more overridden resource patterns, each configured to replace the base resource pattern for one or more specified slots, wherein the one or more overridden resource patterns are configured with a scaling factor and a plurality of overridden slots including a slot index and a DU slot format for each of the plurality of overridden slots, wherein the slot index corresponds to a value between 0 and a maximum value calculated based on the base periodicity and the scaling factor;
• and
• transmit, by the CU of the donor node, the resource pattern to one or more of the plurality of IAB-nodes of the IAB network.

A network entity, comprising:

• a memory storing instructions;
• and
• a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
• receive, at a distributed unit (DU) of a Integrated-Access and Backhaul (IAB)-node, a resource pattern from a central unit (CU) of an IAB-donor node with a direct backhaul link to a core network via one or more IAB-nodes in an IAB network, the resource pattern including a base resource pattern configured with a base periodicity of two or more slots and a plurality DU slot format indices within the base periodicity, wherein the resource pattern further includes an overridden resource pattern configured to replace the base resource pattern for one or more specified slots, wherein the overridden resource pattern is configured with a scaling factor and a plurality of overridden slots including a slot index and DU slot format for each of the plurality of overridden slots, wherein the slot index corresponds to a value between 0 and a maximum value calculated based on the base periodicity and the scaling factor;
• determine a scheduling behavior based at least on the resource pattern;
• and
• communicate with one or more additional neighboring IAB-nodes of the IAB network based on the scheduling behavior associated with the resource pattern.