US 11,991,079 B2
Metrics for fairness and latency assurance in IAB networks
Sarma V. Vangala, Cupertino, CA (US); Dawei Zhang, Cupertino, CA (US); Fangli Xu, Beijing (CN); Haijing Hu, Cupertino, CA (US); Murtaza A. Shikari, Cupertino, CA (US); and Ralf Rossbach, Bavaria-Bayern (DE)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/593,693
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Jan. 14, 2021, PCT No. PCT/CN2021/071870
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2022/151220, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2023/0179518 A1, Jun. 8, 2023
Int. Cl. H04L 45/00 (2022.01); H04W 40/22 (2009.01)
CPC H04L 45/70 (2013.01) [H04L 45/38 (2013.01); H04W 40/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of a parent integrated access and backhaul (IAB) node of a wireless communication system, comprising:
receiving, from a child IAB node, information comprising one or more of:
one or more number of hops metrics corresponding to one or more data flows received at the child IAB node;
one or more aggregate throughput per backhaul (BH) radio link control (RLC) channel identifier (ID) metrics or one or more aggregate throughput per routing ID metrics corresponding to the one or more data flows received at the child IAB node; and
one or more per-hop latency for aggregated traffic per BH RLC channel ID per IAB node metrics or one or more per-hop latency for aggregated traffic per routing ID per IAB node metrics corresponding to the one or more data flows received at the child IAB node;
calculating a fairness index using the received information, wherein the fairness index indicates a percentage of time duration that the child IAB node will prioritize packets of one of the one or more data flows received at the child IAB node;
determining a data flow prioritization configuration for the child IAB node based on the received information, wherein the data flow prioritization configuration comprises the fairness index;
and
sending, to the child IAB node, the data flow prioritization configuration.