US 12,267,859 B2
Resource allocation in MU-MIMO OFDMA wireless systems
Chandra Bontu, Nepean (CA); Jagadish Ghimire, Kanata (CA); and Amr El-Keyi, Kanata (CA)
Assigned to Telefonaktiebolaget LM Ericsson (Publ, Stockholm (SE)
Appl. No. 17/441,381
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 25, 2020, PCT No. PCT/IB2020/052826
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2020/194210, PCT Pub. Date Oct. 1, 2020.
Claims priority of provisional application 62/823,248, filed on Mar. 25, 2019.
Prior Publication US 2022/0183021 A1, Jun. 9, 2022
Int. Cl. H04W 72/54 (2023.01)
CPC H04W 72/54 (2023.01) 18 Claims
OG exemplary drawing
 
1. A method of resource allocation at a network node, the method comprising:
for each user set among at least two predefined user sets:
estimating expected data rates for wireless devices in the user set; and
computing a weighted sum of the expected rates of the wireless devices in the user set, the computing of the weighted sum including:
computing an average data rate for each wireless device in the user set, after an assignment of a previous subframe or a previous resource;
computing marginal gain in utility for each wireless device in the user set based on the computed average data rate of the wireless device;
computing a weighted estimated data rate by multiplying the expected rate of each wireless device in the user set with the corresponding wireless device's marginal gain in utility; and
summing all the weighted estimated data rates of all the wireless device in the user set; and
assigning a selected radio resource to the user set with the highest weighted sum.