US 12,256,352 B2
Method and apparatus for obtaining timing advance value
Dongsheng Sang, Beijing (CN); Ruiping Wei, Beijing (CN); Wenwen Liu, Beijing (CN); Yuan Wang, Beijing (CN); and Wenling Bai, Beijing (CN)
Assigned to Teleonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/605,494
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
PCT Filed Apr. 24, 2019, PCT No. PCT/CN2019/084085
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2020/215251, PCT Pub. Date Oct. 29, 2020.
Prior Publication US 2022/0182959 A1, Jun. 9, 2022
Int. Cl. H04W 56/00 (2009.01); H04L 5/00 (2006.01)
CPC H04W 56/0045 (2013.01) [H04L 5/0048 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method performed at a network node, comprising:
receiving a time domain signal, which contains at least part of a reference signal;
extracting, from the time domain signal, a first group of signal parts including at least one signal part, and a second group of signal parts including at least one signal part, the first group of signal parts not overlapping the second group of signal parts; and
determining a timing advance, TA, value based on an energy of a signal part in the first group of signal parts and an energy of a signal part in the second group of signal parts, the energy of the signal part being based on correlation between the signal part and the reference signal, the determination of the TA comprising determining the TA value based on a comparison of an energy E(n1) and an energy E(n2), the first group of signal parts being extracted from a start of the time domain signal, and the second group of signal parts being extracted from an end of the time domain signal, the n1 referring to a signal part in the first group of signal parts, the n2 referring to a signal part in the second group of signal parts.