CPC H04W 28/0284 (2013.01) [H04W 28/0278 (2013.01); H04W 28/12 (2013.01); H04W 76/12 (2018.02); H04W 88/14 (2013.01)] | 15 Claims |
1. A method, performed by an integrated access backhaul (IAB) node in a radio network, the method comprising:
generating a delivery status that indicates a status of a data connection carried by the IAB node,
wherein the data connection has a logical interface connection to a central unit (CU) node, and
wherein the logical interface connection of the data connection is not terminated at the IAB node; and
transmitting the delivery status to the CU node in response to a downlink delivery status request message from the CU node,
wherein the downlink delivery status request message includes a time value that specifies that the IAB node should send the delivery status every time a timer expires until a certain number of delivery statuses are sent;
wherein the delivery status comprises a buffer size list including pairs of IAB node addresses and buffer statuses of buffers.
|