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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 (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
ZHANG, Lei (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
CHEN, Yan (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2019/074826
Publication Date:
August 15, 2019
Filing Date:
February 12, 2019
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H04L5/00
Foreign References:
CN107306177A2017-10-31
US20170288835A12017-10-05
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
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (8F Building 11, No. 31 Jiaoda East Road Haidian District, Beijing 4, 100044, CN)
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