METHOD AND APPARATUS FOR DATA TRANSMISSION - SAMSUNG ELECTRONICS CO LTD

Title:

METHOD AND APPARATUS FOR DATA TRANSMISSION

Document Type and Number:

WIPO Patent Application WO/2019/216619

Kind Code:

A1

Abstract:

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure discloses a method and an apparatus for data transmission. The method comprises: performing data transmission in a listen-before-talk mode; obtaining HARQ-ACK information of transmitted data bursts; and adjusting a contention window size CWS for carrier sensing to be performed before transmission of a next data burst based on HARQ-ACK information of reference data, wherein the reference data refers to a chosen PDSCH or PUSCH in a reference slot in a reference data burst selected from the transmitted data bursts. The method of the present disclosure may effectively reduce transmission collision between different nodes.

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Inventors:

WANG YI (CN)
LI YINGYANG (CN)
ZHANG SHICHANG (CN)

Application Number:

PCT/KR2019/005423

Publication Date:

November 14, 2019

Filing Date:

May 07, 2019

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04W74/00; H04L1/18; H04W72/12; H04W74/08

Domestic Patent References:

WO2017126935A1	2017-07-27
WO2017184071A2	2017-10-26

Foreign References:

US20170171883A1	2017-06-15
US20180027554A1	2018-01-25
US20170055296A1	2017-02-23

Other References:

3GPP: "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for control (Release 15)", 3GPP TS 38.213 V15.1.0, 8 April 2018 (2018-04-08), pages 1 - 77, XP055651851
See also references of EP 3777428A4

Attorney, Agent or Firm:

YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)

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