US 11,864,150 B2
Uplink coordinated multipoint positioning
Roland Smith, Nepean (CA); Miguel Berg, Sollentuna (SE); Satyam Dwivedi, Solna (SE); and Mike Skof, Nepean (CA)
Assigned to Telefonaktiebolaget L M Ericsson (publ), Stockholm (SE)
Appl. No. 17/295,086
Filed by Roland Smith, Nepean (CA); Miguel Berg, Sollentuna (SE); Satyam Dwivedi, Solna (SE); and Mike Skof, Nepean (CA)
PCT Filed Dec. 13, 2019, PCT No. PCT/IB2019/060795
§ 371(c)(1), (2) Date May 19, 2021,
PCT Pub. No. WO2020/128764, PCT Pub. Date Jun. 25, 2020.
Claims priority of provisional application 62/782,886, filed on Dec. 20, 2018.
Prior Publication US 2022/0095261 A1, Mar. 24, 2022
Int. Cl. H04W 64/00 (2009.01); G01S 5/02 (2010.01); G01S 5/06 (2006.01); H04B 7/024 (2017.01); H04L 5/00 (2006.01)
CPC H04W 64/00 (2013.01) [G01S 5/0244 (2020.05); G01S 5/06 (2013.01); H04B 7/024 (2013.01); H04L 5/0048 (2013.01); G01S 2205/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A network node configured to communicate with a wireless device (WD), the network node comprising:
at least one processor; and
memory storing software instructions configured to control the at least one processor to implement a process including:
employing a coordinated multipoint process to decode data from a WD using signals received from the WD by the network node and from signals received from the WD by a plurality of cooperating network nodes;
converting the decoded WD data into a time domain reference signal and convert the signals received from the plurality of cooperating network nodes into time domain neighbor signals;
cross-correlating the time domain reference signal with the time domain neighbor signals to determine a time difference of arrival for each of the plurality of time domain neighbor signals; and
calculating a position of the WD based on the time differences of arrival and based on locations of the cooperating network nodes.