US 10,568,109 B2Granted

Method and apparatus for transmitting signal based on priorities of cells in wireless communication system

AssigneeLG Electronics Inc.

InventorsSuckchel Yang, Joonkui Ahn

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Abstract

The present invention relates to a wireless communication system. Particularly, the present invention relates to a method for controlling a UL transmission by a terminal in a wireless communication system, and an apparatus therefor, the method comprising the steps of: configuring a first cell of a first UL-DL configuration and a second cell of a second UL-DL configuration, wherein SF # n is a UL SF or an S SF and SF # n+1 is a UL SF in the first cell, and SF # n is a DL SF in the second cell; and controlling a UL transmission in SF # n+1 of the first cell, wherein, when the priority of the first cell is higher than the second cell in SF # n, the UL transmission in SF # n+1 of the first cell is normally performed, and when the priority of the first cell is lower than the second cell in the SF # n, at least a part of the UL transmission in the SF # n+1 of the first cell is limited.

Claims12

Dependent claims

A method of transmitting an uplink (UL) signal by a user equipment (UE) in a wireless communication system, the method comprising:

configuring a first UL-downlink (DL) configuration for a first cell a second UL-DL configuration for a second cell,
wherein, based on respective ones of the first and the second UL-DL configurations, a subframe (SF) # n and a SF # n+1 of the first cell are used for UL transmission and a SF # n of the second cell is used for DL reception, and
based on a first priority of the SF # n of the first cell and a second priority of the SF # n of the second cell, transmitting an uplink signal in the SF # n+1 of the first cell,
wherein, when the first priority is higher than the second priority, transmission of the uplink signal in the SF # n+1 of the first cell is performed,
wherein, when the first priority is lower than the second priority, the transmission of the uplink signal in the SF # n+1 of the first cell is skipped based on a type of the uplink signal, and
wherein an SF configuration in a radio frame according to a UL-DL configuration is as follows:
UL-DL
Subframe number
configuration
0
1
2
3
4
5
6
7
8
9
0
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
D
S
U
U
U
D
S
U
U
D
where D denotes a downlink SF, U denotes an uplink SF, S denotes a special SF, and the S SF includes a downlink pilot timeslot (DwPTS), a guard period (GP), and an uplink pilot timeslot (UpPTS).

94 more elements

A user equipment (UE) transmitting an uplink (UL) signal in a wireless communication system, the UE comprising:

a radio frequency (RF) unit;
and
at least one processor,
wherein the at least one processor configured to:
configure a first UL-downlink (DL) configuration for a first cell and a second UL-DL configuration for a second cell,
wherein, based on respective ones of the first and the second UL-DL configurations, a subframe (SF) # n and a SF # n+1 of the first cell are used for UL transmission and a SF # n of the second cell is used for DL reception, and
based on a first priority of the SF # n of the first cell and a second priority of the SF # n of the second cell, control the RF unit to transmit an uplink signal in the SF # n+1 of the first cell,
wherein, when the first priority is higher than the second priority, transmission of the uplink signal in the SF # n+1 of the first cell is performed,
wherein, when the first priority is lower than the second priority, the transmission of the uplink signal in the SF # n+1 of the first cell is skipped based on a type of the uplink signal, and
wherein an SF configuration in a radio frame according to a UL-DL configuration is as follows:
UL-DL
Subframe number
configuration
0
1
2
3
4
5
6
7
8
9
0
D
S
U
U
U
D
S
U
U
U
1
D
S
U
U
D
D
S
U
U
D
2
D
S
U
D
D
D
S
U
D
D
3
D
S
U
U
U
D
D
D
D
D
4
D
S
U
U
D
D
D
D
D
D
5
D
S
U
D
D
D
D
D
D
D
6
D
S
U
U
U
D
S
U
U
D
where D denotes a downlink SF, U denotes an uplink SF, S denotes a special SF, and the S SF includes a downlink pilot timeslot (DwPTS), a guard period (GP), and an uplink pilot timeslot (UpPTS).

98 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/576,255Filed 20 May 2016 · us provisional application
Priority: 22 May 2015
Published: US 2018/0146485 A124 May 2018
Granted: 18 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 72/56
Allocation or scheduling criteria for wireless resources: based on priority criteria
H04L 5/0005
Two-dimensional division: time-frequency
H04L 5/001
The frequencies being orthogonal, e.g. OFDM or DMT: the frequencies being arranged in component carriers
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver