Title:
METHOD FOR TRANSMITTING/RECEIVING RANDOM ACCESS PREAMBLE IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/216708
Kind Code:
A1
Abstract:
The present specification provides a method for transmitting a random access preamble by a terminal in a wireless communication system supporting narrow band-internet of things (NB-IoT). Specifically, the terminal transmits a random access preamble to a base station according to a particular preamble structure on a subcarrier allocated by the base station and receives, from the base station, a random access response message as a response to the random access preamble. The random access preamble is repetitively transmitted 16 times for a predetermined period and then a gap is inserted for a predetermined time, wherein the predetermined period is determined by multiplying the transmission period, during which the random access preamble is transmitted, by the number of repetitive transmissions of the random access preamble.
Inventors:
KIM JAEHYUNG (KR)
PARK CHANGHWAN (KR)
SHIN SEOKMIN (KR)
AHN JOONKUI (KR)
PARK CHANGHWAN (KR)
SHIN SEOKMIN (KR)
AHN JOONKUI (KR)
Application Number:
PCT/KR2019/005656
Publication Date:
November 14, 2019
Filing Date:
May 10, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W74/00; H04W56/00; H04W72/04; H04W74/08
Foreign References:
| KR20180041706A | 2018-04-24 | |||
| KR20170137051A | 2017-12-12 |
Other References:
WI RAPPORTEUR (ERICSSON): "RAN1 agreements for Rel-13 NB-IoT", RI-165977, 3GPP TSG-RAN WG1 MEETING #85, vol. RAN WG1, 11 August 2016 (2016-08-11), Nanjing, China, XP051141850
HUAWEI ET AL.: "NPRACH enhancement for cell radius extension", RI-1803879, 3GPP TSG RAN WG1 MEETING #92BIS, vol. RAN WG1, 6 April 2018 (2018-04-06), Sanya, China, XP051413466
LG ELECTORNICS: "Dynamic activation and de-activation of secondary cells during carrier aggregation", RI-1804527, 3GPP TSG RAN WG1 MEETING #92BIS, vol. RAN WG1, 10 April 2018 (2018-04-10), Sanya, China, XP051435600
See also references of EP 3681238A4
HUAWEI ET AL.: "NPRACH enhancement for cell radius extension", RI-1803879, 3GPP TSG RAN WG1 MEETING #92BIS, vol. RAN WG1, 6 April 2018 (2018-04-06), Sanya, China, XP051413466
LG ELECTORNICS: "Dynamic activation and de-activation of secondary cells during carrier aggregation", RI-1804527, 3GPP TSG RAN WG1 MEETING #92BIS, vol. RAN WG1, 10 April 2018 (2018-04-10), Sanya, China, XP051435600
See also references of EP 3681238A4
Attorney, Agent or Firm:
ROYAL PATENT & LAW OFFICE (KR)
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