US 12,261,719 B2
Method and device(s) for supporting calibration of a multi-antenna array comprised in an antenna device operative with a wireless communication network
Henrik Asplund, Stockholm (SE); Martin Johansson, Mölndal (SE); David Astely, Bromma (SE); Karl Werner, Segeltorp (SE); and Benny Lennartson, Hägersten (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/014,347
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jul. 7, 2020, PCT No. PCT/SE2020/050712
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2022/010389, PCT Pub. Date Jan. 13, 2022.
Prior Publication US 2023/0308312 A1, Sep. 28, 2023
Int. Cl. H04K 1/10 (2006.01); H04B 17/12 (2015.01); H04B 17/21 (2015.01); H04B 17/24 (2015.01); H04L 25/02 (2006.01); H04L 27/28 (2006.01)
CPC H04L 25/021 (2013.01) [H04B 17/12 (2015.01); H04B 17/21 (2015.01); H04B 17/24 (2015.01); H04L 25/0224 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, performed by one or more first devices, for supporting calibration of a multi-antenna array comprised in a first antenna device operative with a wireless communication network, wherein the method comprises:
providing phase correcting information, to be used in calibration of the multi-antenna array, based on covariances corresponding to recurrent displacement vectors of the multi-antenna array and wherein said covariances are based on channel estimates estimated from certain radio signals received after transmission over radio propagation channels between said multi-antenna array of the first antenna device and one or more second antenna devices operative with the wireless communication network.