US 12,452,148 B2
Method of determining a bit length of an IQ sample
Jaakko Kaikkonen, Oulu (FI)
Assigned to Siemens Industry Software Inc., Plano, TX (US)
Appl. No. 18/288,572
Filed by Siemens Industry Software Inc., Plano, TX (US)
PCT Filed Apr. 27, 2021, PCT No. PCT/IB2021/053450
§ 371(c)(1), (2) Date Oct. 26, 2023,
PCT Pub. No. WO2022/229669, PCT Pub. Date Nov. 3, 2022.
Prior Publication US 2024/0205114 A1, Jun. 20, 2024
Int. Cl. H04L 43/062 (2022.01); H04L 43/022 (2022.01); H04L 43/026 (2022.01); H04W 8/08 (2009.01); H04W 92/12 (2009.01)
CPC H04L 43/022 (2013.01) [H04L 43/062 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of determining a bit length of an IQ sample associated with a first data frame, the method comprising:
capturing one or more data frames between a distributed unit and a radio unit by a packet analyzer, the bit length of the IQ sample being unknown to the packet analyzer;
determining a first parameter associated with a payload length of the first data frame;
determining a second parameter indicative of a number of physical resource blocks in the first data frame;
detecting a presence of a compression header based on the first parameter and the second parameter, the detecting of the presence of the compression header comprising performing, by the packet analyzer, a modulo operation on the first parameter indicative of a payload size of the first data frame, using the second parameter indicative of the number of physical resource blocks in the first data frame, to check if the payload size is a multiple of the number of physical resource blocks;
determining the bit length of the IQ sample from the detected compression header, or the first parameter and the second parameter; and
verifying whether the bit length as set in the configuration of the radio unit, the distributed unit, or the radio unit and the distributed unit matches with the bit length as determined from the first data frame by the packet analyzer,
wherein the determined bit length of the IQ sample of the first data frame is used for checking a configuration of the distributed unit or the radio unit.