CPC H04W 72/0466 (2013.01) [H04J 13/0062 (2013.01); H04L 5/0048 (2013.01)] | 12 Claims |
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.
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