METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MOBILE COMMUNICATION SYSTEM

Title:

METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MOBILE COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/038556

Kind Code:

A1

Abstract:

Disclosed are a communication method for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. A method by which a terminal receives a signal in a mobile communication system, according to one embodiment of the present specification, comprises the steps of: receiving channel state information-reference signal (CSI-RS) mode information; and receiving a signal on the basis of the CSI-RS mode information. Unlike a conventional method of allowing a base station to periodically set the CSI-RS in a terminal at a predetermined position such that the terminal receives the CSI-RS and generates and reports channel state information, the present invention proposes a method by which a base station allocates, to a terminal, a reference signal transmission for enabling aperiodic generation of the channel state information for a system having various numbers of transmission antenna ports such as one, two, four, eight, twelve, sixteen or thirty-two transmission antenna ports, and receives the channel state information report. In addition, a method for transferring ZP CSI-RS and quasi co-location (QCL) information for supporting rate matching thereby is also proposed.

Inventors:

KWAK YOUNGWOO (KR)
NOH HOONDONG (KR)

Application Number:

PCT/KR2017/009269

Publication Date:

March 01, 2018

Filing Date:

August 24, 2017

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04L5/00; H04B7/06; H04W72/04

Foreign References:

US20160227548A1

2016-08-04

Other References:

NOKIA ET AL.: "Aperiodic CSI-RS and Overhead Reduction", RL-166340, 3GPP TSG RAN WG1 MEETING #86, 12 August 2016 (2016-08-12), Gothenburg, Sweden, XP051132523
SAMSUNG: "Additional Details on Aperiodic CSI-RS", R1-166728, 3GPP TSG RAN WG1 MEETING #86, 12 August 2016 (2016-08-12), Gothenburg, Sweden, XP051142177
ZTE CORPORATION ET AL.: "Aperiodic CSI-RS for Non-Precoded CSI-RS", R1-166325, 3GPP T SG RAN WG1 MEETING #86, 13 August 2016 (2016-08-13), Gothenburg, Sweden, XP051132734
CATT: "Support of Aperiodic CSI-RS", R1-166442, 3GPP TSG RAN WG1 MEETING #86, 13 August 2016 (2016-08-13), Gothenburg, Sweden, XP051132771