公开(公告)号：US20220159768A1

公开(公告)日：2022-05-19

申请号：US17433524

申请日：2020-02-25

Applicant: Apple Inc.

Inventor： Jing ZHU ,  Murali NARASIMHA

IPC: H04W76/19 ,  H04L1/16

Abstract: This disclosure provides techniques for recovery techniques to address link failure in multi-hop backhaul relay network. For example, a central unit (CU) node receives, uplink transmissions originating from a user equipment (UE) via a backhaul relay including a first distributed unit (DU) node and a second DU node. The CU then receives a first UL status message associated with a link failure between the first DU node the second DU node. Then the CU generates a second UL status message indicating a sequence number (SN) of a lost packet caused by the link failure or a SN of a last successfully received packet before the link failure, and transmits the second UL status message to the first DU node.

公开(公告)号：US20220345938A1

公开(公告)日：2022-10-27

申请号：US17596618

申请日：2020-06-12

Applicant: Apple Inc.

Inventor： Binita GUPTA ,  Qian LI ,  Jing ZHU ,  Sangeetha L. BANGOLAE ,  Youn Hyoung HEO ,  Puneet JAIN ,  Necati CANPOLAT ,  Carlos CORDEIRO ,  Alexander SIROTKIN

IPC: H04W28/06 ,  H04W28/08

Abstract: A next generation NodeB (gNB) implements a radio access network (RAN) convergence functionality for new radio (NR) and wireless local area network (WLAN) access, the gNB further implementing a split architecture comprising a central unit (CU) and a distributed unit (DU) for each of the NR access and WLAN access. The gNB receives a data packet for transmission to a user equipment (UE) implementing the RAN convergence functionality, the data packet comprising one of a control plane (CP) packet or a user plane (UP) packet. The gNB splits the data packet via a convergence layer residing on the NR CU or a convergence layer residing on the WLAN CU and transmits the split data packet over the NR access and the WLAN access.