Method for configuring an activated SCell with PUCCH resource in a carrier aggregation system and a device therefor

• US 10,321,442 B2
• Filed: 01/13/2016
• Issued: 06/11/2019
• Est. Priority Date: 01/13/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Sunyoung, Yi, Seungjune
• Primary Examiner(s): Tang, Kiet
• Application Number:
  US15/537,368
• Publication Number:
  US 20180049184A1
• Time in Patent Office: 1,245 Days
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for configuring an activated SCell with PUCCH resource in a carrier aggregation system, the method comprising: configuring with a Secondary Cell (SCell); receiving a Radio Resource Control (RRC) signaling indicating that Physical Uplink Control Channel (PUCCH) resource is configured for the SCell; configuring the PUCCH resource with the SCell according to the RRC signaling; and disabling a SCell deactivation timer associated with the SCell if the SCell deactivation timer associated with the SCell is running when the RRC signaling is received.

Claims

1. A method for disabling a Secondary cell (SCell) deactivation timer related to an SCell in a wireless communication system, the method performed by a User Equipment (UE) and comprising:

receiving Radio Resource Control (RRC) signaling including information that a Physical Uplink Control Channel (PUCCH) is configured for the SCell;

configuring the PUCCH based on the received RRC signaling;

disabling the SCell deactivation timer if the SCell deactivation timer is running when the RRC signaling is received; and

activating the SCell if the SCell deactivation timer is not running when the RRC signaling is received.

2. The method according to claim 1, further comprising re-activating the SCell while keeping the SCell deactivation timer disabled after disabling the SCell deactivation timer.

3. The method according to claim 1, further comprising stopping the SCell deactivation timer before disabling the SCell deactivation timer.

4. The method according to claim 2, further comprising transmitting a Sounding Reference Signal on the SCell, transmitting channel status information for the SCell, monitoring a Physical Downlink Control Channel (PDCCH) on the SCell, or monitoring the PDCCH for a plurality of SCells while the SCell is re-activated.

5. The method according to claim 2, further comprising triggering a Power Headroom Report when the SCell is re-activated.

6. The method according to claim 1, further comprising setting a value of the SCell deactivation timer to infinity when the SCell deactivation timer is disabled.

7. A User Equipment (UE) for disabling a Secondary cell (SCell) deactivation timer related to an SCell in a wireless communication system, the UE comprising:

a receiver configured to receive information; and

a processor configured to;

control the receiver to receive Radio Resource Control (RRC) signaling including information that a Physical Uplink Control Channel (PUCCH) is configured for the SCell;

configure the PUCCH based on the received RRC signaling;

disable the SCell deactivation timer if the SCell deactivation timer is running when the RRC signaling is received; and

activate the SCell if the SCell deactivation timer is not running when the RRC signaling is received.

8. The UE according to claim 7, wherein the processor is further configured to re-activate the SCell while keeping the SCell deactivation timer disabled after disabling the SCell deactivation timer.

9. The UE according to claim 7, wherein the processor is further configured to stop the SCell deactivation timer before disabling the SCell deactivation timer.

10. The UE according to claim 8, further comprising a transmitter configured to transmit information, wherein the processor is further configured to control the transmitter to transmit a Sounding Reference Signal on the SCell, control the transmitter to transmit channel status information for the SCell, monitor a Physical Downlink Control Channel (PDCCH) on the SCell, or monitor the PDCCH for a plurality of SCells while the SCell is re-activated.

11. The UE according to claim 8, wherein the processor is further configured to trigger a Power Headroom Report when the SCell is re-activated.

12. The UE according to claim 7, wherein the processor is further configured to set a value of the SCell deactivation timer to infinity when the SCell deactivation timer is disabled.