METHOD OF TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM SUPPORTING CHANGE OF USAGE OF RADIO RESOURCE AND APPARATUS THEREFOR

• US 20150289211A1
• Filed: 04/06/2015
• Published: 10/08/2015
• Est. Priority Date: 04/08/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Seungmin, SEO, Hanbyul, YANG, Suckchel, SEO, Inkwon, CHAE, Hyukjin
• Granted Patent: US 9,674,790 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 40/246 Connectivity information discovery
• CPC Class Codes: H04W 48/14 using user query or user detection
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/16 Deriving transmission power values from another channel
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels
• CPC Class Codes: H04W 52/36 with a discrete range or set of values, e.g. step size, ramping or offsets
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention relates to a method of transmitting uplink control information (UCI), which is transmitted by a user equipment in a wireless communication system. In particular, the method includes the steps of receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell and receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes. In this case, the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.

Claims

1. A method of transmitting UCI (uplink control information) by a user equipment in a wireless communication system, comprising the steps of:

receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell; and

receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes,

wherein the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.

2. The method of claim 1, wherein the first offset information configured for the uplink subframes is applied to the first uplink power control subframe set to transmit the uplink control information.

3. The method of claim 1, wherein second offset information indicated by upper layer signaling is applied to the second uplink power control subframe set to transmit the uplink control information.

4. The method of claim 1, wherein the power control parameter is received via upper layer signaling.

5. The method of claim 1, further comprising the step of receiving a power control parameter releasing the first uplink power control subframe set and the second uplink power control subframe set.

6. The method of claim 5, wherein if the first uplink power control subframe set and the second uplink power control subframe set are released, the uplink subframes are configured to be applied by the first offset information.

7. The method of claim 1, wherein the offset information is used to transmit the uplink control information on PUSCH (physical uplink shared channel).

8. The method of claim 7, wherein the offset information is configured for at least one selected from the group consisting of a HARQ-ACK, an RI (rank indicator) and a CQI (channel quality indicator).

9. A method of transmitting uplink control information, which is transmitted by a user equipment in a wireless communication system supporting carrier aggregation (CA), comprising the steps of:

receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of serving cells; and

receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for at least one or more serving cells among the serving cells,

wherein the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.

10. The method of claim 9, wherein first offset information configured for the uplink subframes is applied to a first serving cell to which the first uplink power control subframe set is configured among the serving cells to transmit the uplink control information.

11. The method of claim 9, wherein second offset information indicated via upper layer signaling is applied to a second serving cell to which the second uplink power control subframe set is configured among the serving cells to transmit the uplink control information.

12. A user equipment transmitting uplink control information in a wireless communication system, comprising:

a radio frequency unit; and

a processor,

wherein the processor is configured to receive first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell, the processor configured to receive a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes, wherein the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.