US Patent No. 10,616,906

METHOD, APPARATUS, AND SYSTEM FOR TRANSMITTING CONTROL CHANNEL IN UNLICENSED BAND


Patent No. 10,616,906
Issue Date April 07, 2020
Title Method, Apparatus, And System For Transmitting Control Channel In Unlicensed Band
Inventorship Minseok Noh, Seoul (KR)
Jinsam Kwak, Gyeonggi-do (KR)
Juhyung Son, Gyeonggi-do (KR)
Assignee WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR)

Claim of US Patent No. 10,616,906

1. A base station of a wireless communication system, the base station comprising:a communication module; and
a processor,
wherein the processor is configured to:
transmit a radio frame divided into a plurality of subframes by using the communication module, wherein a duration of each of the plurality of subframes is 1 ms,
transmit a radio resource control (RRC) signaling which indicates that a user equipment is required to set up for receiving a partial subframe having a duration shorter than the duration of each of the plurality of subframes in an unlicensed serving cell, and
when the base station transmits a control channel for scheduling data transmitted on the partial subframe in the unlicensed serving cell, start to transmit the control channel at an Orthogonal Frequency Division Multiplexing (OFDM) symbol position at which half of the duration of each of the plurality of subframes elapses from a boundary of one of the plurality of subframes,
wherein the OFDM symbol position at which half of the duration of each of the plurality of subframes elapses from the boundary of one of the plurality of subframes is one of a plurality of OFDM symbol positions for transmitting a reference signal.