This disclosure relates to providing in order packet delivery for compressed radio bearers. A wireless device may receive packet data at a packet data convergence protocol layer. A packet reordering timer length to use for the packet data at the packet data convergence protocol layer may be adaptively selected from multiple possible packet reordering timer lengths. The packet data may be processed at the packet data convergence protocol layer using the selected packet reordering timer length. The packet reordering timer length may be selected based at least in part on a robust header compression decompressor state of the packet data convergence protocol layer.