| CPC H04W 76/18 (2018.02) [H04L 1/0026 (2013.01); H04W 24/04 (2013.01); H04W 72/20 (2023.01); H04W 88/085 (2013.01)] | 20 Claims |

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1. A method comprising:
communicating, by a wireless device with a base station distributed unit (BS-DU) and via at least one bearer configured between the wireless device and a base station central unit (BS-CU) through the BS-DU, a first adaptation layer packet, wherein a first header of the first adaptation layer packet comprises a route identifier indicating a route; and
receiving, by the wireless device from the BS-DU, backhaul link information indicating a failure of a link between the BS-DU and the BS-CU, wherein a second header of a second adaptation layer packet comprises the backhaul link information indicating the failure of the link.
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