US 11,943,667 B2
Method and base station for multi-user multiple input multiple output
Chunhui Liu, Beijing (CN); Zhitao Liu, Guangdong (CN); Jingye Li, Beijing (CN); and Zhiyi Zong, Beijing (CN)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/299,977
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Dec. 13, 2018, PCT No. PCT/CN2018/120960
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/118636, PCT Pub. Date Jun. 18, 2020.
Prior Publication US 2021/0385695 A1, Dec. 9, 2021
Int. Cl. H04W 28/26 (2009.01); H04B 7/0452 (2017.01)
CPC H04W 28/26 (2013.01) [H04B 7/0452 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method in a base station, comprising:
obtaining historical scheduling characteristic information;
reserving resources for multi-user multiple input multiple output (MU-MIMO) users based at least on the historical scheduling characteristic information;
allocating the reserved resources to the MU-MIMO users; and
determining to use MU-MIMO when the following conditions are satisfied:
a number of users demanding dense traffic is above a first predetermined threshold;
an average number of physical resource blocks (PRBs) allocated to MU-MIMO users is below a second predetermined threshold; and
a number of users with small package services is below a third predetermined threshold.