Method and apparatus for transmitting uplink control information in carrier aggregation system

Patent metadata

Field	Value
Publication number	US-2017215179-A1
Application number	US-201715412711-A
Country	US
Kind code	A1
Filing date	Jan 23, 2017
Priority date	Jan 21, 2016
Publication date	Jul 27, 2017
Grant date	—

Abstract

A communication method and a system for supporting a high data transmission rate are provided. The method and system fuses 5G communication systems with IoT technology to transmit data at a high rate after 4G systems. The communication method and system are applied to intelligent services, based on 5G communication technology and IoT related technology, for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security, safety-related services, etc. The method for transmitting control information by a user equipment (UE) includes generating uplink control information (UCI), identifying whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell), identifying whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band, and transmitting, to a base station, the UCI according to the identification.

First claim

What is claimed is:

1 . A method for transmitting control information by a user equipment (UE), the method comprising:
generating uplink control information (UCI); identifying whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell); identifying whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band; and transmitting, to a base station, the UCI according to the identification.

2 . The method of claim 1 , further comprising:
transmitting the UCI on the PUSCH of the at least one SCell for licensed band, if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on the at least one SCell for licensed band.

3 . The method of claim 2 , wherein the transmitting of the UCI on the PUSCH comprises:
transmitting the UCI on the PUSCH of SCell with the smallest SCell index, wherein the SCell has the smallest SCell index among the at least one SCell for licensed band.

4 . The method of claim 2 , further comprising:
transmitting the UCI on a physical uplink control channel (PUCCH) of PCell, if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on at least one SCell for unlicensed band.

5 . The method of claim 4 , wherein the UCI is periodic channel state information (CSI).

6 . A method for receiving control information by a base station, the method comprising:
identifying whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell); identifying whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band; and receiving, from a user equipment (UE), uplink control information (UCI) according to the identification.

7 . The method of claim 6 , further comprising:
receiving the UCI on the PUSCH of the at least one SCell for licensed band, if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on the at least one SCell for licensed band.

8 . The method of claim 7 , wherein the receiving of the UCI on the PUSCH comprises:
receiving the UCI on the PUSCH of SCell with the smallest SCell index, wherein the SCell has the smallest SCell index among the at least one SCell for licensed band.

9 . The method of claim 7 , further comprising:
receiving the UCI on a physical uplink control channel (PUCCH), if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on at least one SCell for unlicensed band.

10 . The method of claim 9 , wherein the UCI is periodic channel state information (CSI).

11 . A user equipment (UE) for transmitting control information, the UE comprising:
a transceiver configured to transmit and receive a signal; and at least one processor configured to: generate uplink control information (UCI), identify whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell), identify whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band, and control transmitting, to a base station, the UCI according to the identification.

12 . The UE of claim 11 , wherein the at least one processor is further configured to control transmitting of the UCI on the PUSCH of the at least one SCell for licensed band, if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on the at least one SCell for licensed band.

13 . The UE of claim 12 , wherein the at least one processor is further configured to control transmitting of the UCI on the PUSCH of SCell with the smallest SCell index, wherein the SCell has the smallest SCell index among the at least one SCell for licensed band.

14 . The UE of claim 12 , wherein the at least one processor is further configured to control transmitting of the UCI on a physical uplink control channel (PUCCH), if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on at least one SCell for unlicensed band.

15 . The UE of claim 14 , wherein the UCI is periodic channel state information (CSI).

16 . A base station for receiving control information, the base station comprising:
a transceiver configured to transmit and receive a signal; and at least one processor configured to: identify whether a physical uplink shared channel (PUSCH) is not configured to transmit on a primary cell (PCell), identify whether the PUSCH is configured to transmit on at least one secondary cell (SCell) for licensed band, and control receiving, from a user equipment (UE), uplink control information (UCI) according to the identification.

17 . The base station of claim 16 , wherein the at least one processor is further configured to control receiving of the UCI on the PUSCH of the at least one SCell for licensed band, if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on the at least one SCell for licensed band.

18 . The base station of claim 17 , wherein the at least one processor is further configured to control receiving of the UCI on the PUSCH of SCell with the smallest SCell index, wherein the SCell has the smallest SCell index among the at least one SCell for licensed band.

19 . The base station of claim 17 , wherein the at least one processor is further configured to control receiving of the UCI on a physical uplink control channel (PUCCH), if the PUSCH is not configured to transmit on the PCell and if the PUSCH is configured to transmit on at least one SCell for unlicensed band.

20 . The base station of claim 19 , wherein the UCI is periodic channel state information (CSI).

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Seunghoon
• Oh Jinyoung
• Yeo Jeongho
• Kim Youngbum
• Kwak Yongjun
• Lee Juho

Classifications

• H04L1/1671 Primary

  the supervisory signal being transmitted together with control information · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L1/0026

  Transmission of channel quality indication · CPC title

• H04L1/1887

  Scheduling and prioritising arrangements · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title