US 11,705,984 B2
Method for determining demodulation reference signal for multiple access transmission
Zhipeng Lin, Nanjing Jiangsu (CN); Ali Behravan, Stockholm (SE); Andres Reial, Malmö (SE); Robert Mark Harrison, Grapevine, TX (US); Robert Baldemair, Solna (SE); and Krishna Chitti, Lund (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/265,316
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 16, 2019, PCT No. PCT/CN2019/082893
§ 371(c)(1), (2) Date Feb. 2, 2021,
PCT Pub. No. WO2020/029603, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. PCT/CN2018/098989 (WO), filed on Aug. 6, 2018.
Prior Publication US 2021/0306191 A1, Sep. 30, 2021
Int. Cl. H04L 1/00 (2006.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01); H04L 25/03 (2006.01); H04L 27/26 (2006.01)
CPC H04L 1/0041 (2013.01) [H04J 13/0029 (2013.01); H04L 1/0061 (2013.01); H04L 1/0071 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 25/03866 (2013.01); H04L 27/2613 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for a terminal device to determine demodulation reference signal (DMRS), the method comprising:
obtaining a DMRS configuration and a corresponding signature assigned by a network side node;
constructing a DMRS according to the DMRS configuration; and
mapping the DMRS to a physical channel assigned to the terminal device;
wherein the signature indicates a processing configuration for the physical channel, and wherein an identifier number IDS of the signature is determined based on at least one of: an identifier number n of a DMRS port, an identifier number IDGP of a generation parameter of a DMRS sequence, and a value of the generation parameter.