Title:
PILOT SIGNAL GENERATION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/154425
Kind Code:
A1
Abstract:
Disclosed are a pilot signal generation method and apparatus, which relate to the field of communications, and can improve the number of pilot signals. The method comprises： a terminal receiving a first indication, sent by a network device, of whether a first demodulation reference signal (DMRS) is code-multiplexed with a second DMRS and a second indication for determining a DMRS port number, wherein a symbol where the first DMRS is located is not adjacent to a symbol where the second DMRS is located; determining a DMRS port number according to the first indication and the second indication; if it is determined, according to the first indication, that the first DMRS is code-multiplexed with the second DMRS, acquiring, according to the determined DMRS port number, a parameter for generating a DMRS sequence, wherein the parameter for generating the DMRS sequence comprises a first orthogonal code, one element of the first orthogonal code is used for generating a first DMRS sequence, and one element of the second orthogonal code is used for generating a second DMRS sequence; generating a first DMRS sequence and a second DMRS sequence according to the parameter for generating a DMRS sequence; and mapping the first DMRS sequence and the second DMRS sequence to corresponding time-frequency resources to generate a pilot signal.
Inventors:
WANG LEI (CN)
ZHANG LEI (CN)
CHEN YAN (CN)
ZHANG LEI (CN)
CHEN YAN (CN)
Application Number:
PCT/CN2019/074826
Publication Date:
August 15, 2019
Filing Date:
February 12, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L5/00
Foreign References:
| CN107306177A | 2017-10-31 | |||
| US20170288835A1 | 2017-10-05 | |||
| CN201810147401A | 2018-02-12 |
Other References:
NTT: "Remaining details on DM-RS", 3GPP TSG RAN WG1 MEETING NR AD-HOC#3, R1-1716088, 21 September 2017 (2017-09-21), XP051339546
ETRI: "Discussion on downlink DMRS design", 3GPP TSG RAN WG1 MEETING #89, RL-1708094, 19 May 2017 (2017-05-19), XP051273290
NOKIA: "On details of DL DM-RS for NR physical data channels", 3GPP TSG RAN WGI#88 BIS, RL-1705970, 7 April 2017 (2017-04-07), XP051244079
ETRI: "Discussion on downlink DMRS design", 3GPP TSG RAN WG1 MEETING #89, RL-1708094, 19 May 2017 (2017-05-19), XP051273290
NOKIA: "On details of DL DM-RS for NR physical data channels", 3GPP TSG RAN WGI#88 BIS, RL-1705970, 7 April 2017 (2017-04-07), XP051244079
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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