US 12,034,461 B2
Compression and decompression of delay profile
Henrik Rydén, Stockholm (SE); Roy Timo, Kungsängen (SE); Maksym Girnyk, Solna (SE); and Hamed Farhadi, Stockholm (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/795,333
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 6, 2020, PCT No. PCT/SE2020/050250
§ 371(c)(1), (2) Date Jul. 26, 2022,
PCT Pub. No. WO2021/177870, PCT Pub. Date Sep. 10, 2021.
Prior Publication US 2023/0109257 A1, Apr. 6, 2023
Int. Cl. H03M 7/30 (2006.01); G01S 5/00 (2006.01); H04L 25/02 (2006.01); H04W 64/00 (2009.01)
CPC H03M 7/30 (2013.01) [G01S 5/0036 (2013.01); H04L 25/0212 (2013.01); H04L 25/0254 (2013.01); H03M 7/3059 (2013.01); H03M 7/70 (2013.01); H04W 64/006 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a wireless device, the method comprising:
estimating a delay profile of a channel impulse response, CIR, for a channel between a network node and the wireless device;
compressing the delay profile using a compression function; and
transmitting the compressed delay profile; and
the compression function comprising:
a first function; and
a quantizer, the first function being configured to:
receive input data; and
reduce a dimension of the input data.