Patent ID: 11877284
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method for performing integrated access and backhaul, IAB, in a cellular telecommunications network that comprises a first IAB node and a second IAB node, the method being performed by the second IAB node, the method comprising:
receiving, in a first phase, from the first IAB node, downstream backhaul data as scheduled by the first IAB node; and
scheduling, in a third phase, upstream backhaul data from the second IAB node to the first IAB node;
wherein:
the downstream backhaul data of the first phase is acknowledged or negatively acknowledged by the second IAB node in the third phase, or
the upstream backhaul data of the third phase is acknowledged or negatively acknowledged by the first IAB node in a subsequent first phase, or
both the downstream backhaul data of the first phase is acknowledged or negatively acknowledged by the second IAB node in the third phase and the upstream backhaul data of the third phase is acknowledged or negatively acknowledged by the first IAB node in the subsequent first phase.