Title:
METHOD FOR TRANSMITTING SIGNAL ON BASIS OF CLEAR CHANNEL ASSESSMENT IN UNLICENSED BAND CHANNEL, AND MOBILE COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/023056
Kind Code:
A1
Abstract:
Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. Disclosed are: a method for transmitting a signal in an unlicensed band channel on the basis of a counter reduction in the unlicensed band channel of a mobile communication system and a clear channel assessment (CCA) of the channel; and a mobile communication system, and according to an embodiment of the present invention, the method for transmitting a signal in an unlicensed band channel on the basis of a counter reduction in the unlicensed band channel of a mobile communication system and a clear channel assessment (CCA) of the channel comprises the steps of: reducing the counter and performing a CCA for the channel, during a first period of transmitting a discovery signal and data; storing the reduced counter when a second period of transmitting only the discovery signal without the data is started; reducing the counter by using the stored counter and performing the CCA for the channel when a third period of transmitting the discovery signal and the data is started; and transmitting the discovery signal or the data on the channel on the basis of the counter value.
Inventors:
PARK SEUNG-HOON (KR)
RYOO SUN-HEUI (KR)
MOON JUNG-MIN (KR)
RYOO SUN-HEUI (KR)
MOON JUNG-MIN (KR)
Application Number:
PCT/KR2016/008419
Publication Date:
February 09, 2017
Filing Date:
July 29, 2016
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W74/08; H04W74/00
Domestic Patent References:
| WO2013119097A1 | 2013-08-15 | |||
| WO2015064922A1 | 2015-05-07 | |||
| WO2013122415A1 | 2013-08-22 | |||
| WO2015080488A1 | 2015-06-04 |
Other References:
"3GPP; TSG-RAN; Study on Licensed-assisted Access to Unlicensed Spectrum (Release 13", 3GPP TR 36.889 V1.0. 1, 8 June 2015 (2015-06-08), XP055361981
See also references of EP 3331312A4
See also references of EP 3331312A4
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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