METHOD AND APPARATUS FOR GRANT-FREE DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

Title:

METHOD AND APPARATUS FOR GRANT-FREE DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/084559

Kind Code:

A1

Abstract:

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a grant-free data transmission method. The method includes: receiving resource allocation information for grant-free transmission from a base station; when there is data to be transmitted in a grant-free transmission mode, transmitting uplink data using the grant-free transmission resources according to the resource allocation information; if the transmission of the uplink data cannot be completed within a predefined number of uplink data transmissions, transmitting a dedicated resource request indicator to the base station; receiving dedicated resource allocation information from the base station; and transmitting subsequent uplink data on dedicated resources corresponding to the dedicated resource allocation information. The present disclosure further provides a grant-free data transmission method applied to the base station, a UE and a base station. The technical solution of the present disclosure can improve the data transmission reliability as well as system spectrum utilization ratio.

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Inventors:

QIAN CHEN (CN)
YU BIN (CN)
SU DI (CN)
XIONG QI (CN)
ZHANG YINGJIE (CN)
FU JINGXING (CN)

Application Number:

PCT/KR2017/012238

Publication Date:

May 11, 2018

Filing Date:

November 01, 2017

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04W72/12; H04W72/04; H04W74/08

Domestic Patent References:

WO2016053639A1	2016-04-07
WO2015122701A1	2015-08-20
WO2016053639A1	2016-04-07

Foreign References:

US20060176845A1	2006-08-10
US20140254544A1	2014-09-11
US20160219627A1	2016-07-28
US20120213196A1	2012-08-23

Other References:

"General procedures for grant-free/grant-based MA", RL-1609228
"Data transmission in low activity state", R2-166284
See also references of EP 3533268A4

Attorney, Agent or Firm:

KWON, Hyuk-Rok et al. (KR)

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