Patent ID: 11924675
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. At least one non-transitory machine readable storage medium having instructions embodied thereon for operating an Integrated Access and Backhaul (IAB) node in an IAB network, the instructions when executed by one or more processors perform the following:
decoding, at a distributed unit (DU) of the IAB node, a scheduling request (SR) received from one of a user equipment (UE) or a child IAB node, wherein the SR is associated with the UE;
encoding, at a mobile terminal (MT) of the IAB node, the SR for transmission to a parent IAB node or a IAB donor triggered by receipt of the SR, wherein the SR is transmitted prior to a receipt of a PDU at the DU of the IAB node;
decoding, at the MT of the IAB node, a first uplink grant received from the parent IAB node or the IAB donor;
encoding, at the MT of the IAB node, a predictive buffer status report (pBSR) that includes a default nominal size of resource allocation that accommodates a control plane message and a buffer status report (BSR) when no BSR is received from the UE or the child IAB node for transmission to the parent IAB node or the IAB donor using the first uplink grant;
decoding, at the MT of the IAB node, a second uplink grant received from the parent IAB node or the IAB donor, wherein the second uplink grant is received in response to the pBSR;
decoding, at the DU of the IAB node, the PDU received from the UE or the child IAB node, wherein the PDU is received at the IAB node after the SR is transmitted to the parent IAB node or the IAB donor; and
encoding, at the MT of the IAB node, the PDU for transmission to the parent IAB node or the IAB donor using the second uplink grant.