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Title:
INFORMATION SENDING AND RECEIVING METHODS, DEVICE AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/052380
Kind Code:
A1
Abstract:
Information sending and receiving methods, a device and an apparatus. The information sending method comprises: a first terminal device determining, according to first information, at least one of the number or positions of m DMRSs carried on a PSSCH, m being a positive integer, the first information including at least one of a subcarrier interval, the duration of the PSSCH, or a channel coherence time, and the first terminal device sending the m DMRSs to a second terminal device. Provided is a scheme of configuring DMRS in a PSSCH of V2X in an NR system. Furthermore, a reference channel coherence time may be selected when determining DMRS in a PSSCH, for example, the time interval between two configured adjacent DMRSs may be made less than or equal to the channel coherence time, thereby improving the accuracy of channel estimation performed according to the DMRS.

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Inventors:
XIANG ZHENGZHENG (CN)
ZHAO DEHUA (CN)
LI TIANZE (CN)
LU LEI (CN)
Application Number:
PCT/CN2019/099633
Publication Date:
March 19, 2020
Filing Date:
August 07, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L5/00; H04L25/02; H04W4/46
Domestic Patent References:
WO2017178993A12017-10-19
Foreign References:
CN107979452A2018-05-01
US20180048446A12018-02-15
CN201811075068A2018-09-14
Other References:
HUAWEI: "DMRS Enhancement for V2V", 3GPP TSG RAN WG1 MEETING #82BIS R1-155646, 26 September 2015 (2015-09-26), XP051002491
See also references of EP 3852297A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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