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US 9,001,686 B2Granted
Interference estimation with TDM
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorTorbjörn Wigren
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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorTorbjörn Wigren
Estimating the term…
Mobile broadband traffic has been exploding in wireless networks resulting in an increase of interferences and reduced operator control. Networks are also becoming more heterogeneous putting additional demand in interference management. Scheduler schedules uplink transmissions from UEs based on a load prediction algorithm that typically assumes worst case. However, UEs do not always use full power granted, and thus, much of granted radio resources are wasted. To address these and other issues, technique(s) to accurately predict/estimate other cell interferences and thermal noise separately and to accurately predict/estimate load utilization probability and variance is(are) described. Inventive estimation technique(s) can be used to schedule UEs to more fully utilize available radio resources, e.g., in TD-scheduling operations. Extended Kalman filtering can be adapted for use in estimation providing low order computational complexity.
A method performed at a radio network node corresponding to a cell of interest in a wireless network, the method comprising:
A radio network node of a wireless network, the radio network node corresponding to a cell of interest and being structured to determine an other cell interference Pother(t), the radio network node comprising:
Dependencies are inferred from the claim text.