UPLINK CONTROL INFORMATION TRANSMITTING METHOD AND USER EQUIPMENT, AND UPLINK CONTROL INFORMATION RECEIVING METHOD AND BASE STATION

• US 20170373741A1
• Filed: 12/31/2015
• Published: 12/28/2017
• Est. Priority Date: 12/31/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: YANG, Suckchel, AHN, Joonkui, Lee, Seungmin
• Granted Patent: US 10,433,288 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0623 Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 47/6275 based on priority
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/56 based on priority criteria

Abstract

The present invention provides a method and device for transmitting/receiving an uplink signal. When an Scell group including only Scells is set for a user equipment of the present invention and one of the Scells included in the Scell group is set as a cell (hereinafter, “Acell”) in which a PUCCH can be transmitted, UCI of a particular cell group can be transmitted through a Pcell if the particular cell group is a Pcell group having the Pcell and can be transmitted through the Acell of the Scell group if the particular cell group is an Scell group.

Claims

1. A method for transmitting uplink control information (UCI) by a user equipment configured with a plurality of cells, the method comprising:

configuring a secondary cell group having one or more secondary cells other than cells belonging to a primary cell group having a primary cell among the plurality of cells, and a special secondary cell for transmission of a physical secondary uplink control channel (PUCCH) among the one or more secondary cells in the secondary cell group; and

transmitting at least a first UCI for the primary cell group, a second UCI for the secondary cell group, or a third UCI for the primary and secondary cell groups on the primary cell group or the secondary cell group,

wherein the first UCI is transmitted on the primary cell, the second UCI is transmitted on the secondary cells, and the third UCI is transmitted on either the primary cell or the special secondary cell.

2. The method according to claim 1, wherein the first UCI is transmitted over a PUCCH configured on the primary cell, the second UCI is transmitted over a PUCCH configured on the secondary cells, and the third UCI is transmitted over a physical uplink shared channel (PUSCH) configured for the primary cell group or the secondary cell group.

3. The method according to claim 1, wherein the first UCI is ACK/NACK information on the first cell group, the second UCI is ACK/NACK information on the second cell group, and the third UCI is channel state information on the primary cell group and the secondary cell group.

4. The method according to claim 1, wherein, when there is a primary cell group physical uplink shared channel (PUSCH) configured for the primary cell group, the first UCI is transmitted over the primary cell group PUSCH,

wherein, when there is a secondary cell group PUSCH configured for the secondary cell group, the second UCI is transmitted over the secondary cell group PUSCH.

5. A user equipment for transmitting uplink control information (UCI), the user equipment configured with a plurality of cells, the user equipment comprising:

a radio frequency (RF) unit; and

a processor configured to control the RF unit,

wherein the processor is configured to;

control the RF unit to configure a secondary cell group having one or more secondary cells other than cells belonging to a primary cell group having a primary cell among the plurality of cells, and a special secondary cell for transmission of a physical secondary uplink control channel (PUCCH) among the one or more secondary cells in the secondary cell group; and

control the RF unit to transmit at least a first UCI for the primary cell group, a second UCI for the secondary cell group, or a third UCI for the primary and secondary cell groups on the primary cell group or the secondary cell group,

wherein the first UCI is transmitted on the primary cell, the second UCI is transmitted on the secondary cells, and the third UCI is transmitted on either the primary cell or the special secondary cell.

6. The user equipment according to claim 5, wherein the first UCI is transmitted over a PUCCH configured on the primary cell, the second UCI is transmitted over a PUCCH configured on the secondary cells, and the third UCI is transmitted over a physical uplink shared channel (PUSCH) configured for the primary cell group or the secondary cell group.

7. The user equipment according to claim 5, wherein the first UCI is ACK/NACK information on the first cell group, the second UCI is ACK/NACK information on the second cell group, and the third UCI is channel state information on the primary cell group and the secondary cell group.

8. The user equipment according to claim 5, wherein, when there is a primary cell group physical uplink shared channel (PUSCH) configured for the primary cell group, the first UCI is transmitted over the primary cell group PUSCH,

wherein, when there is a secondary cell group PUSCH configured for the secondary cell group, the second UCI is transmitted over the secondary cell group PUSCH.

9. A method for receiving, by a base station, uplink control information (UCI) from a user equipment configured with a plurality of cells, the method comprising:

configuring, for the user equipment, a secondary cell group having one or more secondary cells other than cells belonging to a primary cell group having a primary cell among the plurality of cells, and a special secondary cell for transmission of a physical secondary uplink control channel (PUCCH) among the one or more secondary cells in the secondary cell group; and

receiving at least a first UCI for the primary cell group, a second UCI for the secondary cell group, or a third UCI for the primary and secondary cell groups on the primary cell group or the secondary cell group;

wherein the first UCI is received on the primary cell, the second UCI is received on the secondary cells, and the third UCI is received on either the primary cell or the special secondary cell.

10. A base station for receiving uplink control information (UCI) from a user equipment configured with a plurality of cells, the base station comprising:

a radio frequency (RF) unit, and

a processor configured to control the RF unit,

wherein the processor is configured to;

configure, for the user equipment, a secondary cell group having one or more secondary cells other than cells belonging to a primary cell group having a primary cell among the plurality of cells, and a special secondary cell for transmission of a physical secondary uplink control channel (PUCCH) among the one or more secondary cells in the secondary cell group; and

control the RF unit to receive at least a first UCI for the primary cell group, a second UCI for the secondary cell group, or a third UCI for the primary and secondary cell groups on the primary cell group or the secondary cell group,

wherein the first UCI is received on the primary cell, the second UCI is received on the secondary cells, and the third UCI is received on either the primary cell or the special secondary cell.