US 12,426,040 B2
Decoding channel state information report part two
Qingchao Liu, Ottawa (CA); Xixian Chen, Ottawa (CA); and Pierre Coll, Gatineau (CA)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/249,798
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
PCT Filed Oct. 22, 2020, PCT No. PCT/IB2020/059934
§ 371(c)(1), (2) Date Apr. 20, 2023,
PCT Pub. No. WO2022/084723, PCT Pub. Date Apr. 28, 2022.
Prior Publication US 2023/0422241 A1, Dec. 28, 2023
Int. Cl. H04W 72/1268 (2023.01); H04L 1/1867 (2023.01); H04W 72/21 (2023.01)
CPC H04W 72/1268 (2013.01) [H04L 1/1887 (2013.01); H04W 72/21 (2023.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a network node for decoding a channel state information (CSI) report, the method comprising:
generating a physical uplink shared channel (PUSCH) scrambling sequence for descrambling a PUSCH without accounting for the existence of a CSI report part two;
receiving the PUSCH from a wireless device, the PUSCH comprising a CSI report part one and a CSI report part two, wherein the CSI report part one and CSI report part two are encoded independently;
descrambling the PUSCH using the PUSCH scrambling sequence;
decoding the CSI report part one from the descrambled PUSCH to determine a rank indicator;
determining a location of CSI report part two soft bits in the PUSCH based on the rank indicator;
extracting a scrambling sequence from the PUSCH scrambling sequence corresponding to the location of the CSI report part two in the PUSCH;
generating a CSI part two scrambling sequence based on the PUSCH scrambling sequence and the location of the CSI report part two in the PUSCH with correct x and y locations;
applying the extracted scrambling sequence to the location of the CSI report part two soft bits in the PUSCH to undo the incorrect scrambling;
descrambling the location of the CSI report part two soft bits in the PUSCH using the CSI part two scrambling sequence; and
decoding the CSI part two.