US 10,834,599 B2Granted

Method of transmitting and receiving signal through unlicensed bandwidth in wireless communication system, and apparatus for same

AssigneeLG Electronics Inc.

InventorsHanbyul Seo, Joonkui Ahn

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Abstract

In the present application, a method is disclosed of transmitting a downlink data channel from a base station through a terminal in a wireless communication system. In particular, the method comprises the steps of: mapping the downlink data channel to a transmitting resource of a licensed bandwidth or a transmitting resource of an unlicensed bandwidth; and transmitting the mapped downlink data channel via the terminal. The step of mapping the downlink data channel is characterized by comprising the steps of: applying a frequency priority mapping technique when the downlink data channel is mapped to the transmitting resource of the licensed bandwidth; and applying a time priority mapping technique when the downlink data channel is mapped to the transmitting resource of the unlicensed bandwidth.

Claims4

Dependent claims

A method of transmitting a downlink data channel by a Base Station (BS) to a User Equipment (UE) in a wireless communication system, the method comprising:

mapping the downlink data channel to a transmission resource of a licensed band or a transmission resource of an unlicensed band;
and
transmitting the mapped downlink data channel to the UE,
wherein mapping the downlink data channel comprises:
applying a frequency-first mapping scheme based on the downlink data channel being mapped to the transmission resource of the licensed band;
applying the frequency-first mapping scheme based on the downlink data channel being mapped to the transmission resource of the unlicensed band and a number of bits transmitted through the downlink data channel being less than a threshold;
and
applying a time-first mapping scheme based on the downlink data channel being mapped to the transmission resource of the unlicensed band and the number of bits transmitted through the downlink data channel being equal to or greater than the threshold,
wherein the time-first mapping scheme sequentially maps Orthogonal Frequency Division Multiplexing (OFDM) symbols from a first OFDM symbol to a last OFDM symbol at a same subcarrier, and repeats mapping at a next subcarrier, and
wherein the frequency-first mapping scheme sequentially maps OFDM symbols from a first subcarrier to a last subcarrier at a same OFDM symbol, and repeats mapping at a next OFDM symbol.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/323,292Filed 3 Jul 2015 · us provisional application
Priority: 3 Jul 2014
Published: US 2017/0142593 A118 May 2017
Granted: 10 Nov 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04W 16/14
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures: spectrum sharing…
H04L 1/0057
Systems characterized by the type of code used: block codes
H04L 1/0071
Systems characterized by the type of code used: use of interleaving
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers