US 11,997,666 B2
Method, device and computer storage medium for communication
Yukai Gao, Beijing (CN); and Gang Wang, Beijing (CN)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/800,671
Filed by NEC CORPORATION, Tokyo (JP)
PCT Filed Feb. 19, 2020, PCT No. PCT/CN2020/075863
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2021/163923, PCT Pub. Date Aug. 26, 2021.
Prior Publication US 2023/0354289 A1, Nov. 2, 2023
Int. Cl. H04W 72/044 (2023.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01)
CPC H04W 72/0466 (2013.01) [H04J 13/0062 (2013.01); H04L 5/0048 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a terminal device, comprising:
generating a demodulation reference signal (DMRS) sequence based on a sequence group, wherein the sequence group is determined by a first parameter, wherein
the first parameter equals a second parameter when a first condition is satisfied, the second parameter is related to an identity associated with physical uplink shared channel (PUSCH) between the terminal device and a network device, the first condition comprises:
the second parameter is configured by a first higher layer parameter, the PUSCH is neither scheduled by random access response (RAR) uplink(UL) grant nor scheduled by downlink control information(DCI) format 0_0 with cyclic redundancy check (CRC) scrambled by temporary cell-radio network temporary identifier (TC-RNTI), and a second higher layer parameter related to transform precoding of the DMRS sequence is not configured;
the first parameter equals a third parameter when a second condition is satisfied, the third parameter is related to a scrambling identity, the second condition comprises:
the second higher layer parameter is configured, π/2-BPSK modulation is used for the PUSCH, and the PUSCH transmission is not a msg3 transmission, and
the first parameter equals a fourth parameter when neither the first condition nor the second condition is satisfied, the fourth parameter is related to a cell identity; and
transmitting the DMRS sequence to the network device.