US 12,413,363 B2
Reference signal transmission
Yukai Gao, Beijing (CN); and Gang Wang, Beijing (CN)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC CORPORATION, Tokyo (JP)
Filed on Jun. 10, 2024, as Appl. No. 18/738,944.
Application 18/738,944 is a continuation of application No. 17/288,401, granted, now 12,155,590, previously published as PCT/CN2018/113535, filed on Nov. 1, 2018.
Prior Publication US 2024/0333447 A1, Oct. 3, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04J 13/12 (2011.01)
CPC H04L 5/0048 (2013.01) [H04J 13/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method comprising:
generating an DMRS (DeModulation Reference Signal) sequence by initializing a pseudo-random sequence generator by a modulo operation on a sum of parameters; and
transmitting the DMRS sequence, wherein
the parameters comprising a parameter derived based on an index of an CDM (Code Division Multiplexing) group and a DMRS sequence initialization quantity, wherein
a value of the parameter is 0 when the index of the CDM group is 0 and the DMRS sequence initialization quantity is 0, wherein
the value of the parameter is 1 when the index of the CDM group is 1 and the DMRS sequence initialization quantity is 0, wherein
the value of the parameter is 0 when the index of the CDM group is 2 and the DMRS sequence initialization quantity is 0, wherein
the value of the parameter is 1 when the index of the CDM group is 0 and the DMRS sequence initialization quantity is 1, wherein
the value of the parameter is 0 when the index of the CDM group is 1 and the DMRS sequence initialization quantity is 1, wherein
the value of the parameter is 1 when the index of the CDM group is 2 and the DMRS sequence initialization quantity is 1.