US 12,010,067 B2
Slot-based CSI report configuration for dynamic TDD
Sara Sandberg, Luleå (SE); Sebastian Faxér, Järfälla (SE); Shiwei Gao, Nepean (CA); and Arne Simonsson, Gammelstad (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/263,351
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 10, 2018, PCT No. PCT/SE2018/050816
§ 371(c)(1), (2) Date Jan. 26, 2021,
PCT Pub. No. WO2020/032842, PCT Pub. Date Feb. 13, 2020.
Prior Publication US 2021/0328746 A1, Oct. 21, 2021
Int. Cl. H04L 5/00 (2006.01); H04L 5/14 (2006.01); H04W 72/0446 (2023.01)
CPC H04L 5/0057 (2013.01) [H04L 5/1469 (2013.01); H04W 72/0446 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for operating a cell, performed by a network node, the method comprising:
transmitting a frame comprising a set of slots;
receiving Channel State Information, CSI, reports at least indicative of interference measured by a user equipment using the set of slots;
estimating a transmission direction pattern of an adjacent cell relative to a transmission direction pattern of the cell based on the received CSI reports;
transmitting a signal to the user equipment based on the estimated transmission direction pattern of the adjacent cell;
calculating a statistical measure of interference levels, of each slot of the set of slots, using the CSI reports and previously received historical CSI reports;
the transmission direction pattern of the adjacent cell estimated using the statistical measure;
determining that the statistical measure is stationary; and
selecting only one slot out of the corresponding slots having the stationary statistical measure for later CSI reporting instances.