Method and system for provisioning signalling in integrated access backhaul (IAB) network

A parent Integrated Access Backhaul (IAB) node for provisioning signalling in an IAB network, comprising:

• a memory;
• a processor;
• a communicator;
• and
• an indication controller, configured to:
• configure plurality of potential availability combinations to at least one child IAB node, wherein each potential availability combination from the plurality of potential availability combinations comprises at least one availability value indicating availability of a resource in at least one resource type of at least one slot;
• determine at least one resource not utilized for communicating with a mobile terminal (MT) of at least one child IAB node;
• and
• signal an indication of availability (IA) for the at least one resource to the at least one child IAB node for at least one slot, wherein the IA indicate an availability combination from the plurality of potential availability combinations.

A child Integrated Access Backhaul (IAB) node for provisioning signalling in an IAB network, comprising:

• a memory;
• a processor;
• a communicator;
• and
• an indication controller, configured to:
• receive an indication of availability (IA) signal from a parent IAB node and perform at least one action
• wherein perform the at least one of action comprises:
• a. one of “receiving by the at least one child IAB node the IA from the parent IAB node, overriding a semi-static configuration of the hard (H), soft (S), and not available (NA) configuration at the DU of the at least one child IAB node based on the IA, utilizing by the DU of at least one child IAB node in child or access link, a resource configured as one of H, S, and NA based on the availability of resource type signalled by IA”;
• and “receiving by the at least one child IAB node the IA from the parent IAB node, and apply by the DU of at least one child IAB node the IA only for resource type configured as S”;
• b. one of “receiving by the at least one child IAB node the IA from the parent IAB node, and utilizing by the DU of at least one child IAB node in child or access link based on the availability of resource type signalled by IA”;
• and “receiving by the at least one child IAB node the IA signal from the parent IAB node, and applying the availability of resource type signalled in IA signal by the DU of at least one child IAB node for scheduling the child or access link based on downlink (DL) resource, uplink (UL) resource, and flexible (F) resource configuration”;
• c. one of “receiving by the at least one child IAB node the IA from the parent IAB node, and determining by the at least one child IAB node an actual duration of availability of resources at DU of the at least one child IAB node, and scheduling the child or access link based on the actual duration of availability of the resources at DU of the at least one child IAB node”, and “receiving by the at least one child IAB node the IA from the parent IAB node and scheduling the child or access link based on the actual duration of availability of the resources indicated by the IA”;
• d. one of “receiving by the at least one child IAB node the IA from the parent IAB node, and applying by the DU of at least one child IAB node IA from the slots which start immediately after slots in which the IA is received” and “receiving by the at least one child IAB node the IA from the parent IAB node, and applying by the DU of at least one child IAB node IA after an offset from the slots in which the IA is received”;
• and
• e. one of “receiving by the at least one child IAB node the IA from the parent IAB node, and applying by the DU of at least one child IAB node IA starting from the earliest slot of the DU of the at least one child IAB node which overlap with slot of the MT of the at least one child IAB in which IA is received”;
• and “receiving by the at least one child IAB node the IA signal from the parent IAB node, and applying by the DU of at least one child IAB node IA starting from the earliest slot of the DU of the at least one child IAB node which overlap with symbols of the MT of the at least one child IAB in which IA is received”.