CPC H04W 72/23 (2023.01) [H04L 5/0055 (2013.01); H04W 72/1273 (2013.01); H04W 72/21 (2023.01); H04W 72/535 (2023.01)] | 25 Claims |
1. A method of wireless communication performed by a relay/repeater unit (RU), the method comprising:
receiving, from an upstream node, a first physical downlink control channel (PDCCH) message associated with a scheduled physical uplink control or shared channel (PUXCH) transmission from a downstream node at a scheduled time;
relaying or repeating the first PDCCH message to the downstream node;
upon determining that the scheduled PUXCH transmission associated with the first PDCCH message was not received from the downstream node at the scheduled time, sending a negative acknowledgement (NACK) message associated with the scheduled PUXCH transmission to the upstream node;
receiving, from the upstream node in response to the NACK message, a second PDCCH message associated with a rescheduled PUXCH transmission at a rescheduled time; and
relaying or repeating the second PDCCH message to the downstream node.
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